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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.
| 14001. |
Which term of a. P. 3,7,.......is 79? |
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Answer» 20th term 79=3+(n-1)4n=20 79 is 20th term of AP 79 is 18th term of an ap 79 is 20th term of this A.P 20 There must be three terms to make an A.P. but if it is a real A.P then the 20th term will be 79. 34 20 |
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| 14002. |
Find two consecutive odd positive integer sum of whose square is 290 |
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Answer» 11 and 13 13 and 11... |
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| 14003. |
The length of the diagonal a square is 24 centimetre find its area |
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Answer» 288cmsquare It means hypotenuse is 24 cm and let other two sides be x cm as squares has all side equal to each other.Now by pythagoras thm.,H2\xa0= B2\xa0+ P224 X 24 = X2 + X224 X 24 =\xa02X2288 cm2 is the area of square |
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| 14004. |
(cotA+cosecA) (cotA-cosecA) |
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Answer» -1 1 -1 |
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| 14005. |
How many three digits which divisible by 7 |
| Answer» a =105d=7An =994So by using An=a+(n-1)d994=105+(n-1)7889/7=n-1128=n | |
| 14006. |
Ek vritt per khinchi Gai sparsh Rekha samantar hoti hai siddh kijiye |
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| 14007. |
Write a rational number between root 2 and root 3 explain. |
| Answer» √2 = 1.414 and √3 = 1.73 Now, a rational number between √2 and √3 is 1.523. | |
| 14008. |
If the ratio of Mth & Nth term of an ap is MXM Devided by NXN |
| Answer» Incomplete question | |
| 14009. |
I submit the paper |
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Answer» "I submit the paper" it is not a question which paper?? |
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| 14010. |
Find the coordinates of point on y axis which is nearest to the point(-2,5) |
| Answer» 10 | |
| 14011. |
Two natural numbers whose sum is 85 and least common multiple is 102 are |
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Answer» Prime factorisation of 102 is 2*3*17And prime factorization of 85 is 5*17=(2+3)*17.Hence the required natural numbers are 17*2=34 and 17*3= 51 Solve it I think the required natural numbers are 34 and 51 |
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| 14012. |
Binomial theorem |
| Answer» Do you mean basic proportionality theorem | |
| 14013. |
Show that x=-bc/ad is a solution of the quadratic equation ad^2(ax/b+2c/d)x+bc^2=0. |
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| 14014. |
Prove that 5=5 |
| Answer» As they both has 5&1 as only factor and we know that the prime factorization of any no is unique. | |
| 14015. |
If Sn = 2n then prove that a5 = a7 |
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Answer» Sjrb uh Sn= 2nIfn=5S5=10S4 =8SoS5-S4 =A5A5 =2SimilarlyA7 =2A5=A7HP |
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| 14016. |
Matnmatics standard question kaha SAi ban saktai hai |
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Answer» C The question paper will based on ncert but some questions can also will come from rd sharma and rs agarwal types adfitional books. I think you should practice ncert examples ,exercises and also optional exercises |
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| 14017. |
The common difference of an AP is -2. Find its sum , if first term is 100 and last term is -10. |
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Answer» n=56 & Sn=5320 n=45 Sn=2025 |
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| 14018. |
Dcimal representation of 11/5×3 |
| Answer» Non terminating repeating.... | |
| 14019. |
Therrem 6.8 |
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| 14020. |
explain why 7x11x13 and 7x6x5x4x3x2x1+5 are composit number . |
| Answer» Because it has more than 2 factors, 1 or itself... | |
| 14021. |
The surface area of a sphere and a cube are equal,find the ratio of their volumes |
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Answer» Under root 21/11 Ratio = 4πr²/6a² = 2πr²:3a² |
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| 14022. |
Find the solution using quadratic formula x |
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| 14023. |
Write the ampirical relationship between the three measure of central tendency |
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Answer» 3median=2mean+mode 3median=mode+2mean |
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| 14024. |
How much board paper comes from last years board paper? |
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Answer» no anynew paper I hope easy than last year papers Not sure..but almost same like that.. |
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| 14025. |
which term of an AP have 121, 117, 113, ..........is its first negative term |
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Answer» 32nd term The answer is 32nd term |
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| 14026. |
Frustum of cone |
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Answer» a part of cone 1/3πh[R2 + r2 + Rr] |
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| 14027. |
1\\x+4-1/x-7=11/30,x≠-4,7 |
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| 14028. |
×+1+×-2=3×-1+×+2 |
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Answer» x=-1 x = -1 |
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| 14029. |
What is major |
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Answer» Important seniour or significant Major means big. For eg. There are two arcs in a circle,the larger one will be called major arx Hap bhan k land Batao na major kya hai |
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| 14030. |
Distance of point P(2,3) from the x-axis using distance formula |
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Answer» Given the point P(2,3).We have to find the distance from x-axis i.e perpendicular distance from x-axis.In the graph , we see in order to determine the perpendicular distance the point of x-axis to be taken is (2,0)Therefore, the distance is 3-0=3.Hence, the distance of point P(2,3) from x-axis is 3 units.\xa0 2 |
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| 14031. |
loose sheets are available or not in exam |
| Answer» Don\'t worry about that this will be not required.... | |
| 14032. |
Eculid division lemma |
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Answer» Given positive integer A and B such that unique integer q and r satisfy a = bq + r zero equal to greater than r less than b Where 0≤b a=bq+r, where 0 ≤ r | |
| 14033. |
Karl marx ideas of socialism .( in points with side headings) |
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| 14034. |
If n is an odd integer then show that n^2-1 divisible by 8 |
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Answer» hence, we conclude that 4P² + 4P is divisible by 8 for all natural number .hence, n² -1 is divisible by 8 for all odd value of n . P =3 then,4P² + 4P = 4(3)² + 4(3) = 36 + 12 = 48 , divisible by 8 P =2 then,4P² + 4P = 4(2)² + 4(2) =16 + 8 = 24, it is also divisible by 8 . Now, when P = 1 then,4P² + 4P = 4(1)² + 4(1) = 4 + 4 = 8 , it is divisible by 8. We know ,odd number in the form of (2P +1) where P is a natural number ,so, n² -1 = (2P + 1)² -1= 4P² + 4P + 1 -1= 4P² + 4P If n is 4 n square + 1 here b is equals to 4the possible value of r is 0 ,1 ,2 ,3 but we take odd positive integer so we take 4q + 1 and 4q + 3 case first when n is equals to 4 Cube + 1 in this case we have any square - 14 Cube + 1 ka whole square minus 1 16 square + 8 + 1 - 1 16 square + 88 cube to cube + 1 and square minus 1 is divisible by 8 second case when was 24 Cube + 2 in this case we have |
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| 14035. |
the sum of the square of two consecutive natural number is 313 and find the number |
| Answer» Let 1st no. = x2nd consecutive no. =x+1X^2 + ( x+1)^2 =313X^2 +x^2 +2x+1=3132X^2+2x+1-313=02x^2 +2x -312 = 02(x^2 + x -156) =0X^2 +x-156=0Splitting middle termX^2 +13x -12x -156 =0X(x+13)- 12(x+13)=0(x+13)(x-12)=0x+13=0 or x-12=0X= -13 or x=12X= -13(not possible as -13 is not nature number)So, x=12 and x+1 = 13Hope this will help u? | |
| 14036. |
If the area of a circle is 154cm2 , then it\'s area of quadrant is |
| Answer» 38.5cm^2 | |
| 14037. |
For what value of k,the roots of the equation 3x²- 10x + k =0 are reciprocal of each other? |
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Answer» Let x and 1/x are the roots of given equation.X*1/x=c/a1=k/3K=3 1 |
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| 14038. |
The 11th term from the last of the A.P [10,7,4,…,-62] is equal to ? |
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Answer» -32.. -39 |
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| 14039. |
The mean of 6 observation is 8. If 5 observation are 5,7,6,10,12, find the 6th observation |
| Answer» 8 | |
| 14040. |
Exe 5.4 q5 |
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| 14041. |
if secA=x+1÷4x ,prove that secA+tanA=2x |
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| 14042. |
Chapter 11 exercise 11.1 question 6 |
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| 14043. |
an integer is chosen between 70 and 100 find the probability that is it a prime number |
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Answer» Correct Answer is 6/29 7/30 |
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| 14044. |
The sum of exponent of prime factor in the factorisation of 31500 is |
| Answer» 2+2+3+1=8 | |
| 14045. |
are pre boards important? |
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Answer» It is important only for your practice . It is to examine your current prepration only?... Very much important |
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| 14046. |
Prove that the point (3,0),(6,4)and(-1,3)are the vertices of a right angled isosceles triangle |
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| 14047. |
Which book is best for doing maths?????? |
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Answer» Ncert , xamidea and rd.sharma Main → ncert... 4practice..rd or rs..? Practice ke lea Rs agrawal concept ke lea NCERT NCERT Books is better Ncert,RD Not too good but if you have, you could prefer it? And how is Arihant. Book.... Really..... Ncert Rs aggarwal and ncert |
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| 14048. |
Tan/cos=? |
| Answer» sin/ cos2 | |
| 14049. |
The mean of 20 observations is 12 .If each observation is increased by 5 then find the new mean |
| Answer» 17 | |
| 14050. |
Prove pgt |
| Answer» | |