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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 79401. |
Show that\frac{r_{1}}{b c}+\frac{r_{2}}{c a}+\frac{r_{3}}{a b}=\frac{1}{r}-\frac{1}{2 R} |
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Answer» 1 2 3 |
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| 79402. |
(VII43. Verify the following:122-12-59-9(in) 500 or2*7*7* 5(1) 8 * 132 12(iv) -7 -3513 812-35+2-7the following:12712-13) |
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Answer» verify this are ho gxohcjlchfvbnm |
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| 79403. |
Calculate Karl Pearson's coefficient of correlationx 17 8 12 | 13 | 10Y | 13 | 7 | 10 | 11 | 8| 12| 9| |
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| 79404. |
(A) 12:18(B) 8:12(C) 6:9(D) 2:3 |
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| 79405. |
9. An agent is paid a commission of 4% on cashsales and 6% on credit sales made by him. Ifon the sale of 51,000 the agent claims atotal commission of 2,700, find the salesmade by him for cash and on credit. |
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Answer» agent is paid 4% of commission and 6 % sales credits fgd systems can be regular use in the house and office at a bit of scale for the pr process and my job |
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| 79406. |
Which of the rational numbersands greater. Insert three rational numbeweenandso that all the five numbers are in ascending order of their values |
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| 79407. |
9995. Write any five rational numbers between 1000 and 1.00 |
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Answer» 1=1000/1000hencerational numbers between 999/1000 and 1000/1000 will be999.1/1000,999.2/1000,999.3/1000,999.4/1000,999.5/1000 |
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| 79408. |
EXERCISE 1.1Is zero a rational number? Can you write it in thand q +0?Find six rational numbers between 3 and 4.Find five rational numbers betweenandState whether the following statements are truFyery natural number is a whole numbe |
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Answer» yes 0 is a rational no we can write it in the form of p/ q 0=0/1 0/2 0/3 3×7/7=21/7,4×7=28/7,21/7,22/7,23/7,24/7,25/7,26/7,27/7,28/7 to find six rational numbers between 3and4 you have ✖multiply 3and4 by 7 you get answer |
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| 79409. |
tĐž uuuu of cylluetHur Find the compound interest on half yearly basis for the following:P= Rs 5000; R= 12% p.a.; T=1 year |
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Answer» answer will be when we will find I then interest will be 600rupee then C.I=A--P = 5000--600 = 4400 |
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| 79410. |
s. Find the area of the sector of a circle with radius 4 cm and of angle 30° Also,find the area of the corresponding major sector. (UseT-3.140 |
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Answer» Angle of major sector = 360-30 = 330. Area of major sector = (330/360)*π*4²= 46.05 cm²Area of minor sector = (30/360)*π*4²= 4.19cm² Please hit the like button if this helped you. |
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| 79411. |
25 34-2-2713-34A at-6-8 +-12-27T-12 |
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Answer» (3t - 2)/4 - (2t + 3)/3 = 2/3 - t 3(3t - 2) - 4(2t + 3) = 12(2/3 - t) 9t - 6 - 8t - 12 = 8 - 12t t - 18 = 8 - 12t t + 12t = 8 + 18 13t = 26 t = 26/13 = 2 |
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| 79412. |
| सिद्ध क क ह क अपरिमेय संख्या |
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Answer» To prove that√5 is irrational numberLet us assume that√5 is rationalThen√5 =a/b(a and b are co primes, with only 1 common factor and b≠0)⇒√5 = a/b(cross multiply)⇒ a =√5b⇒ a² = 5b² ------->α⇒ 5/a²(by theorem if p divides q then p can also divide q²)⇒ 5/a ----> 1⇒ a = 5c(squaring on both sides)⇒ a² = 25c² ---->βFrom equationsα andβ⇒ 5b² = 25c²⇒ b² = 5c²⇒ 5/b²(again by theorem)⇒ 5/b-------> 2 we know that a and b are co-primes having only 1 common factor but from 1 and 2 we can that it is wrong.This contradiction arises because we assumed that√5 is a rational number∴ our assumption is wrong∴√5 is irrational number |
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| 79413. |
1. Given A-1, 2, 31, B-B, 4, С-|4, 5, 6), find (AB) r (B «C) |
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| 79414. |
A vertical capillary tube with inner radius 0.5 mm, is submerged into water so that the length of its partabove the water surface is h =25 mm. Radius of curvature of meniscuses formed will be (surface tensionof water =0.075 N/m. Density of water =10^3 kg/m2, angle of contact - 0°) |
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| 79415. |
2. Write five rational numbers greater than - 100. |
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Answer» -95-96,-97,-98,-99, is the correct answer of the given question -96 ,-97,-98,-99, -95 |
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| 79416. |
4)The centroid divides the median in the ratioa) 2:1b) 1:3d)3:1c)1:4 |
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Answer» A triangle ABC, AD, BE & CF Medians intersecting at O. O is the Centroid of the triangle. As medians bisect sides of the triangle. So, BD=DC, AF=FB, AE=EC, TO PROVE:● AO/OD = 2:1 CONSTRUCTION:● Extend OD = DH , Join H& C And B & H PROOF:● OD = DH ( by construction) BD = DC ( median AD bisects BC) Therefore, BHCE is a parallelogram Now, in triangle AHC, AE = EC ( given) OE // HC ( proved above) So, AO = OH ( Mid point theorem) => AO = 2OD => AO/OD = 2/1 (a) is correct option |
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| 79417. |
20. Write five rational numbers between -1 and 2. |
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| 79418. |
Simplify and express each of the following in exponential form:23 x34 x43 X 32((52)3×54)÷57(ii)(iii)254 ÷53 |
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| 79419. |
7. The ages (in years) of 10 teachers in a schod34, 37, 53, 46, 52, 43. 31. 36, 40.50.Find the median age. |
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Answer» (34+37+53+46+52+43+31+36+40+50) /10=422/10=42.2 years (34+37+53+46+52+43+31+36+40+50)/10=422/10=42.2years 42.2 years is the right answer |
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| 79420. |
hese a1 What is the angle name for half a revolution?2 What is the angle name for one-fourth revolution?3, Draw five other situations ofone fourth, half and three-fourth revolution ona clock. |
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| 79421. |
1e A small metallic washer is of 7 mm radius with a hole of 3.5 mm radius. What is the area of thewasher?the |
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Answer» Area of washer(including hole)=πr^2=22/7*7*7=22*7=154mm^2area of hole=πr^2=22/7*3.5*3.5=22*0.5*3.5=22*1.75=38.5mm^2area of washer(excluding hole)=154-38.5=115.5mm^2 |
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| 79422. |
\sqrt { 216 } - 5 \sqrt { 6 } + \sqrt { 294 } - \frac { 3 } { \sqrt { 6 } } |
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| 79423. |
The rational number -is additive identity for any rational number.(a) (b) 1 (c) 2 (d) 3 |
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Answer» Additive identity , an element that when added to a given element in a specified set leaves that element unchanged. (a) 0 is correct option |
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| 79424. |
If- 1is obtained on doubling a rational number, then the rational number is(b)-14(a) 222 |
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| 79425. |
0.1)Give two rational numbers whose(i)difference is a rational number,(ii)sum is a rational number,(iii) product is a rational number,(iv) division is a rational number. Justify al- |
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| 79426. |
Represent these numbers on the number line2 5n the number line13' 13' 12RepresentWrite five rational numbers which are smaller thanFind 12 rational numbers between-1 and 2.Find a rational number betweenandHint: First write the rational numbers with equalFind ten rational numbers between-3 and4 61.6 Decimal representation of Rational numbWe know every rational number is in the form ofee how to express a rational number in decimal formTo convert a rational numberinto decimal by divisior2516Consider a rational number |
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Answer» how to represent 12/70 rational number on number line |
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| 79427. |
7. A rational number between 3 and 4 istam8. A rational number between9. A rational number betweenand |
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| 79428. |
Project20 Bulding magic squareof :-4X4 |
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| 79429. |
27 The following is a magic square in which the sum of each row, column and diagonal is 150. Fill thissquare by using all numbers from 46 to 5449524653 |
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| 79430. |
complete the following magic square of multiplication.81 8110381 |
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Answer» the logic here us that every step right multiplies by three and every step down multiplies by 9, so the answer will be [1/81×1/81][1/81×1/27][1/81×1/9][1/27×1/27][1/3×1/81][1/9×1/9][1/27×1/3][1/3×1/9][1/3×1/3] |
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| 79431. |
(d) south and make one full revolution?(Shouid we specify clockwise or anti-clockwise for this last question? Why not?) |
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| 79432. |
Vrite the following numbers in figuresa) Eight lakh nineteen thousand five hundred sixteer.b) Nine lakh sixteen thousand fifty.c) Sixty two lakh eighty thousand fourteen.Iakh raventy thousand five |
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Answer» (a) 819516(b) 916050(c) 6280014 |
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| 79433. |
The first one is done for you. The last number is given to you as a chec29484049334718613119 |
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Answer» 840 493 294 186 131 347 199 108 55 148 91 53 57 38 19 |
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| 79434. |
VS-3-2İsa)c)16.a rational numberequal to zerob) a natural numberd) an irrational number |
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Answer» thnx for ur effort |
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| 79435. |
1. The product of (s+/5) and (s-3) sA Rational numberB. Irrational NumberC. Complex NumberD. of These |
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Answer» ( 5 + √3) ( 5 - √3) 5² - (√3)² 25 - 3 22 A) rational Number |
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| 79436. |
1.Which of the following is an irrational number(c) VS(d r(a) 4916 |
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| 79437. |
(A) Rational number(C) Integer(B) Irrational number(D) of these |
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| 79438. |
Name the given figure.PentagonalPrismBaseline Test 2018-19: Standard - Seven: Subject - Mathematics : (9) |
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Answer» 2nd figure has a face with max 5 edges thus pentagonal prism and the last one is a hexagon. |
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| 79439. |
1. The age of mother and daughter are inthe ratio 9:4. Five years ago, age ofmother was 10 years more than twicethe age of her daughter. Find theirpresent ages.(CBSE 2014) |
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Answer» Let x and y be the present age of mother and daughter we have,x/y = 9/4=> x = 9y/4 -- (1) from the given condition we get,x-5 = 10 + 2(y-5)=> x-5 = 10+ 2y-10=> (9y/4) - 5 = 2y=> (9y/4) - 2y = 5=> (9y - 8y)/4 = 5=> y/4 = 5=> y = 20putting y = 20 in (1)x = (9×20)/4=> x = 45 therefore the present ages of the mother and the daughter are 45 years and 20 years let present age of mother be 9x daughter 4x5years ago mother age = 9x-5daughter. = 4x-59x-5= 2(4x-5)+109x-5=8x-10+109x-8x=5x=5so mother age =9x= 9×5=45daughter age=4x=4×5 =20 years |
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| 79440. |
7. In a magic square each row, column and diagonal have the same sum. Check which ofthe following is a magic square.-6 4toIS |
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Answer» thanks I I need clear answer with step |
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| 79441. |
A seller selling 10 books for15 earns a profit equal to the purchase price of thebooks, Find the percentagedidAns. 2.351.251profit and also calculate purchase price per book. IAns. Profit 100%, Purchase Price 75 paise per unuSuresh sells a cow to Ramesh at a profit of 10% and Ramesh sells it to Prakash at a loss of 5%. WhatPrakash pay for the cow if Suresh paid 2.250?oc loss If Ram purehases |
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| 79442. |
TURCISE 2.1e following numbers written in words ? (1 toHow are the following1. 2,03,174(11 Twenty lakh three thousand one hundred and seventy-fo(2) Two lakh three thousand seven hundred and forty-seven(3) Two lakh three thousand one hundred and seventy-fou(4) Twenty lakh thirty-one hundred and seventy-four, |
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Answer» 20031742037472031742003174 3rd option is correct 20031742037472031742003174is the answer 20031742037472031742003174 20,30,174 20,30,74720,30,17420,31,074 The answer is option 3 which is written as Two lakh three thousand one hundred and seventy four options 3 is correct option 3 is correct answer. HjaijahuauaIaya6syeyeheueuis8sushsbhsjsiisisuuayahaus88s8ahababsjisiw984738292828822 option 3. is correct answer Option 3. is the right answer |
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| 79443. |
5. S(a) Eighty-two lakh, forty thousand, four hundred and six from ninety-seven lakh.7(b) Seven lakh, fifty-four thousand and seventy from one crore. |
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Answer» a.14,59,594b.92,55,930 |
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| 79444. |
Diadde261 into thre othat last one ttttade |
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| 79445. |
(a) Six lakh twenty-eight thousand four hundred sixty-six |
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Answer» your answer is 6,28,466 |
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| 79446. |
2Six Codes five lokne forty three thousand Sixty five |
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| 79447. |
write the 100 MFour thousand four hundred forty four.Sixty four thousand eight.Nineteen thousand four hundred fifty seven.-) Seventy thousand four hundred three.-) Ninety thousand eight.Fill in the blanks with < or > sign:3) 34512 5451 (ii) 63458 _63548 |
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Answer» 444464008194577040390008 I am right now because this video is not 1)44442)640083)194574)704034)90008 1)> 2)< 444464008194577040390008 34512greater than 5451 and 63458 lesser than 63548 |
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| 79448. |
9) If n is a natural number, then vn isa) always a natural number b) always an irrational numberc) always a rational number d) sometimes natural and sometimes i |
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| 79449. |
15. Give an example of two irrational numbers in each case whose(i) sum is a rational number.(ii) difference isnumber1. |
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Answer» root2,1+root2 is right answer the sum is a rational number |
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| 79450. |
llDallana64.Howmanybananascanbepurchase6.50?11. The cost of 18 chairs is 22770. How many such chairs can be bouas can be purchased forought for 10120?12 |
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Answer» cost of 18chairs is 22770hence cost of one chair is 22770/18=284.625rupeeshence in 10120=10120/284.625=35.33hence 35 chairs can be bought. |
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