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| 63801. |
(ii) The amount of air present in a cylinder when a vacuum pump removes- of theair remaining in the cylinder at a time. |
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Answer» 3/4 amount of air will be present as the vaccum pumps remove 1/4 amount of gas. find A1 is X and X/4 so find 3x/4 it is A2 find A2 take A2 3x/4 and take vaacum pump removes 1/4 (3x/4). and solve find to answer 9x/16 it is A3 and find A4 = take A3 = 9x/16 and take cylinde vaacum 1/4and(9x/16)and solve answer is 27x/64 and let's pair =X; 3x/4 9x/16. 9x/64 that solve |
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| 63802. |
(ii) The amount of air present in a cylinder when a vacuum pump removes of the4air remaining in the cylinder at a time. |
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Answer» Let a be the amount of air initially Amount of air remaining after 1stpump =a –(a/4)=3a/4 Amount of air remaining after 2nd pump= (3a/4) – (1/4)(3a/4)=9a/16 Amount of air remaining after 3rd pump= (9a/16) – (1/4)(9a/16)=27a/64 So the series is likea,3a/4,9a/4,27a/64…….. Difference Ist and second term=-a/4 Difference between Second and Third term= -3a/16 So difference is not constantSo it is not Arithmetic Progression |
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| 63803. |
additional km.The amount of air present in a cylinder when a vacuum pump removes of theair remaining in the cylinder at a time.12metre of digging when it costs 150 for the |
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Answer» Let us assume, initial quantity of air = 1 Therefore, quantity removed in first step = ¼ Remaining quantity after first step =1−14=3/4 Quantity removed in second step =3/4×1/4=3/16 Remaining quantity after second step =3/4−3/16=12−3/16=9/16 Here each subsequent term is not obtained by adding a fixed number to the previous term. Hence, it is not an AP. |
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| 63804. |
m e than Ajay's marks?10. Roshan loses 20% of his money. After spending 25% of the4,800 with him. How much did he originally have ?!ing 25% of the remainder, he hasDL-10 |
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Answer» 13 and the 14 ,15 is answer ok thanks |
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| 63805. |
.mpes month in s recurring deposit aceennt Sor one year at ram2 Saloni deposited t150 per month in a barà for 8 months under the Recurring Depeonit2002)018% paTind the amount she will receivt at er sme of maturinSscheme What will be the maturity valoe of his deposits, if the rate of interestper annum?3 Mrs. Goswami derwsite + |
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Answer» Thanks |
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| 63806. |
3. Each of A and B opened a recurringdeposit accounts in a bank. If Adeposited 1,200 per month for 3 yearsand B deposited 1,500 per month foryears; find, on maturity, who will22get more amount and by how much ?The rate of interest paid by the bank is10% per annum |
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| 63807. |
andeposited Rs. 200 per month for 36 months in a bank's recurring depositunt. If the bank pays interest ofthe rate of 11% per annum, find the amountgets on maturityAns. 8,421] |
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Answer» P=200₹n=36 monthsR=11%MV=Pn +Pn(n+1)/2400=200*36 + 200*36(37)*11/2400=200*36 + 33 * 37=7200+1221=8421₹ hit like if you find it useful the bank gave an interest of Rupes 500 on a deposit |
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| 63808. |
Harbhajan Singh bought 500 kgof rice for 22000 rupees andsold it all at the rate of 48per kg. How much profit did hemake? |
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Answer» Total selling price = 500*48= ₹ 24000Profit = 24000-22000 = ₹ 2000. Please hit the like button if this helped you |
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| 63809. |
Ram bought 1600 eggs at Rs 3.75 per dozen. He sold 900 of them at 2 for Re 1 and the remainingat 5 for Rs 2. His gain percent is:22.a) 40%b) 45%c) 42%d)46% |
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| 63810. |
magnitude of the displacement veetol lolwhich girl is this equal to the actual length ofpath skate ?4.9 A cyclist starts from the centre Oof a circular park of radius 1 km, reaches the edgeof the park, then cycles along the circumference, and returns to the centre along 00as shown in Fig. 4.21. If the round trip takes 10 min, what is the (a) net displacement.(b) average velocity, and (c) average speed of the cyclist? |
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| 63811. |
Ram loses 25% of hishe originally have?money. After spending 30% of the remaining amount, he is left with (2625, How much mone |
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Answer» Ram loses 25% and 30% spendso remaining is 45%now 45%=2625so 100%=5833.33so initially he had 5833.33 answer is coming rs 5000 pls tell |
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| 63812. |
2625, How muchRam loses 25% of his money. After spending 30% of the remaining amount, he is left withhe originally have?money |
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Answer» Let Ram initially had Rs. x He loses 25 % of his money. ⇒ x/1 - (x*25)/100 ⇒ x/1 - x/4 Taking LCM of the denominator and then solving it. ⇒ (4x - x)/4 = 3x/4 Now, after losing he spent 30 % of the remaining amount and he his left with Rs. 2625 ⇒ 3x/4 - {(3x/4)*30}/100 = 2625 ⇒ 3x/4 - 9x/40 = 2625 Taking LCM of the denominator and then solving it. ⇒ (30x - 9x)/40 = 2625 ⇒ 21x/40 = 2625 ⇒ 21x = 40*2625 ⇒ 21x =105000 ⇒ x = 105000/21 ⇒ x = Rs. 5000 So, he initially had Rs. 2625 |
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| 63813. |
The amount of air present in a cylinder when a vacuuair remaining in the cylinder at a time.pump removes + of the |
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Answer» when 1/4th is removedthen remaining will be 1-1/4=3/4th of air pagal hair kya |
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| 63814. |
avid opened a recurring deposit account in a bank and deposited 300 per month for twoIf he received 27725 at the time of maturity, find the rate of interest per annum.(2008)years. |
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Answer» thank you can you guide in doing linear inequations |
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| 63815. |
(ii) David opened a Recurring Deposit Accountin a bank and deposited 300 per monthfor two years. If he received ? 7,725 at thetime of maturity, find the rate of interest[2008]per annum. |
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Answer» Maturity Value = ₹ 7725Money deposited = 300 ×24 =₹7200Total interest = 7725 - 7200 =₹525Instalment per month(P) = ₹ 300Number of months (n) = 24Let rate of interest (r) = r% p.a. SI = PA n(n+1)x r/(2*12*100)525= 300*(24)*(25) x r/(24*100)r= 7 percentageplease like the solution 👍 ✔️ |
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| 63816. |
14. Ram Singh bought a refrigerator for 74000 on credit.The rate of interest for the first year is 5% and for thesecond year is 15%. How much will it cost hirn if hepays the amount after two years?rs |
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Answer» for the first year interest is 4000×(5÷100)=200interest for the second year is 4000×(15÷100)=600.: Total cost after two years= 4000+600+200= Rs 4800. |
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| 63817. |
Compare the equivalent fractions2/7=blank/14=6/blank=16/blank |
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Answer» 2/7= 4/14= 6/21=16/56 |
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| 63818. |
find the value of a anu y.110° |
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| 63819. |
Thune anu1st anda 7wnat as |
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| 63820. |
atart e(RanakIdlines .gard the d)ä¸anu L berwentfum |
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Answer» 1 therefore d= 2√(9+16)/(4(4+1))d = 2√25/20d = 2(√5)/2d = √5 |
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| 63821. |
renw언30ム구淑.no-uShuchanU |
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Answer» 100 is the answer Here's the explanation:he lowest number greater than a hundred and divisible by 9 is 108...the largest number divisible by 9 and less than a thousand is 999... we use this formula... T = A + (n-1)*d T is the nth term in an arithmetic sequenceA is the first term in an arithmetic sequencen is the number of termsd is the common difference you are asking for "the number of 3 digit numbers divisible by 9" or numbers that are greater than 100 but less than 1000 that are divisible by 9 so... we are looking for the number of terms given first term(A) = 108last term(T) = 999common difference(d) = 9 we subtitute the given values999 = 108 + ( n - 1 ) * 9 we then solve...999 = 108 + ( n - 1 ) * 9999 - 108 = ( n - 1 ) * 9891 = ( n - 1 ) * 9( 891 ) / 9 = [ ( n - 1 ) * 9 ] / 999 = n - 199 + 1 = n100 = n therefore...there are 100 3-digit numbers divisible by 9 |
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| 63822. |
Ram bought a book for 178.50, somemedicines for 248.25 and gave a 500note to the shopkeeper. The remainingamount isLJNV 20161 |
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Answer» Remaining amount = 500 - (178.50 + 248.25) = 500 - 426.75 = 73.25 |
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| 63823. |
llect information & write about uses searm caused by Emicroorgansms,noLinear Equations in One VariableThe difference between two numbers is 8. If 2 is added to the bigger number thewill be three times the smaller number. Find the numbers.What are those two numbers whose sum is 58 and difference is 28?"he sum of two consecutive odd numbers is 56. Find the numbers.iultiples |
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Answer» in first questionone number is x and another number is x-8 if 2 is added to the big number means 2 is added to the x then x + 2 is equal to 3 times the smaller number 3(x-8)== 3x-24now x+2=3x-242+24=3x-x2x=26x=13show the bigger number is 13 and the smaller number is 13-5=8 sorry sorry here is the smaller number is 5 because 13-8=5 biggest no. is 13 and smallest no. is 8 biggest no.is 13 and smallest no.is 8 |
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| 63824. |
कि जन नून० ‘the numbers 64, J64 , Y64 , Y634 isasurd? |
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Answer» thanks |
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| 63825. |
1. Sohan Lal invests Rs 300 per month for 1 year in a Recurring Deposit Account withSyndicate Bank. If the rate of interest be 6% per annum, calculate the amount that he wilget at the time of maturity |
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Answer» Installment per month (P) = 300Number of months (n) = 12Rate of Interest (r) = 6% Then,SI = P * n(n+1)/2*12 * r/100 = 300 * 12(13)/24 * 6/100 = 300 * 13/2 * 6/100 = 13*9 = 117 The amount Sohan lal will get at the time of Maturity = 300*12 + 117= 3600 + 117= Rs 3717 |
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| 63826. |
the sum of two numbers is 64 and the difference is 12. What are the numbers? |
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Answer» thank you!! |
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| 63827. |
9. The number of ways of distributing8identi-cal balls in 3 distinct boxes sรณ that none of theboxes is empty is1) 5(2004)2) 8C3 3)38 421 |
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| 63828. |
Fill in the blank boxes.f.79I63 |
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Answer» 0.7777777778 this may be the answer 49 is the answer of the blank box 49 is the correct answer of blank box 49 is the of th blank 49 it's my answer for blank box 49is the correct ans of blank box ok 49 is the right answer i think 49 is the correct answer of black box 7/9=x/639x=63×7x=49ans 49/63=7/949 is the ri8 answer 63 is the answer of the blank box 49 is answer of the blank box 49 is the answer of this questions 7 is the answer in box 47 is the correct answer in this question 49 is the answer of this question Let In box number is X then 7*63=9*X Now X =49 49 is the answer of the box 49 is the answer fir this question 49 is answer of the blanks box 49 is the answer for this blank box 49 this may be the answer 49 is fill up the space of box 7 is the answer of the blank box 9 answer please hiivjf blank box in number 49 blank box number in 49 the blank box number in 49 49 this true answer by me and we tha blank box number in 49 49 is the correct ans of blank box 49 is the answer of blank bos 49 is the correct answer 7/9=7*7/9*7=49/63. answer is 49 49 is correct answer 49 is right ans is box 7*7=49 and answer is 49 9*7=63 7/9 = */637/9x7/9= 49/63 49 is the answer of this 🙋questions 49 is the answer of this question 49 is the answer of the question9×7=63and7×7=49 49 49 is correct answer 49 is the correct answer of this question 49 is the answer of blank box 49 is correct answer of blank box 9*7=63,7*7=49 answer hoga 49 box in number ,,,,,,,,,,,,,,,,,,,,,,,, 49 is the answer of the blank boxhe 9 is the correct answer 49 is the correct answer The answer of the question is 49 |
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| 63829. |
A survey was made to find the type of musicthat a certain group of young people liked ina city. Adjoining pie chart shows the findingsof this surveyFrom this pie chart answer the following:(i) 1f20 people liked classical music, howmany young people were surveyed?(i) Which type of music is liked by themaximum number of people?If a cassette company were to make1000 CD's, how many of each typewould thev make?(ii) |
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| 63830. |
4. Fill in the boxes:b.C.9 81Đ 1578 26e.f.321 |
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Answer» a-8,b-10,c-72,e- ?,f-? f) 963 is the value.. |
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| 63831. |
A. Tick (1) the correct option.(a) The value of x such thatare equivalent rationalational numbers- 24 are equivale(i) 64(ii) - 64(iii) â 9(iv) 9 |
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Answer» Given,-3/8 and x/-24 are equivalent rational numbers Therefore,-3/8 = x/-24x = - 3*-24/8 = 3*3 = 9 (iv) is correct option 9 d iska answer 9 Hai Ab Mujhe like kar Value of x in the given equivalence is 9. option 4 is the correct answer of the given question 9 9 is the correct answer |
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| 63832. |
Find the numbers of digits in the square root of each of the following numbers (without calculation)64 |
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Answer» √ 64 = 8 No of digits = 1 but how |
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| 63833. |
026 Ram bought two jewellery sets of Rs 20000each. He sold one ataprofit of 15% and other sold it at a loss of 4%.A) Find SP of each Jewellery set?B) Find the total profit or loss in the whole transaction? |
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| 63834. |
101 > 99 + 99 > 99 рди ? |
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| 63835. |
7. Express 64 as the sum of 8 odd numbers. |
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| 63836. |
(7рео-99) (7рел-99) |
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| 63837. |
Which of the following numbers are cube of negative integers?1) -64 |
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| 63838. |
(a) A man invests Rs. 20,020 in buying shares having a nominal value of Rs.26 at 10%premium. The dividend on the shares is 15% per annum. Calculate:i. The number of shares he buys.i. The dividend he receives annually[31iii. The rate of interest he gets on his money |
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Answer» Total Investment = 20020FV of 1 share = 26MV of 1 share = 26(1 + 10/100) = 26(11/10) = 28.60Dividend on one share = (15/100)*26 = 3.90 (1) Number of shares bought = 20020/28.60 = 700 (2) Annual Dividend = 700*3.90 = Rs 2730 (3) Rate of Interest = (2730/20020)*100 = 13.6 % |
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| 63839. |
Simplify the surd, v128+ 8. |
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| 63840. |
implest form of a surd |
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Answer» thanx |
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| 63841. |
1. Express 4243 as a mixed surd. |
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Answer» 4√3×3×3×3×3×33(3)^1/4 4√3×3×3×3×3×33(3)^1/4 4V3x3x3x3x3x3 = 3(3))^1/4 |
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| 63842. |
2) State the order of the surd. |
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Answer» Order of surd 7^1/3so its 3 |
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| 63843. |
22. By examining the MRI result, theprobability that cancer is detected whena person is actually suffering, is 0.99.The probability of a healthy persondiagnosed to have cancer is 0.001. In acertain city, 1 in 1000 people suffersfrom cancer. A person is selected atrandom and is diagnosed to have cancer.What is the probability that he actuallyhas cancer?What are the values reflected in thequestion? |
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| 63844. |
(2) State the order of the surd\sqrt[3]{7} |
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Answer» Can we get other method |
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| 63845. |
9 Somika sells twojewellery boxes for 1,400 each. On one she eams a profit of 10% and onsuffers a loss of 10%. Find her overall profit or loss percent. |
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| 63846. |
Which one of the numbers 64, V64 , 164ă64 is a surd? |
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Answer» A number that can't be simplified to remove a square root (or cube root etc). Examples: • √2 (square root of 2) can't be simplified further so it is asurd. • √4 (square root of 4) CAN be simplified to 2, so it is NOT asurd.Surds. so in this case 64^(1/4) is a Surd |
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| 63847. |
9. Sonika sells two Jewellery boxes for1,400 each. On one she earns a profit of 10% and on the othersuffers a loss of 10%. Find her overall profit or loss percent. |
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Answer» no answer is 1 per cent r |
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| 63848. |
State the order of the surd \sqrt{\sqrt[3]{126}} |
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| 63849. |
64 , \sqrt { 64 } , \sqrt [ 4 ] { 64 } , \sqrt [ 4 ] { 64 }\ text { which one is a surd}\ |
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| 63850. |
fig, if QT2PR, ZTQR 40° and ZSPR -30°, find x and y304ote four solutions of the equation x+2y-6hich quadrant and on which axes the pint (3 1land |
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