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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.
| 31251. |
The surface area of sphere and cube are equal then find the ratio of their volumes? |
| Answer» Surface area of sphere = 4πr^2Surface area of cube =4a^2Atq, 4πr^2=4a^2=>πr^2=a^2=>a=r√πVolume of sphere /volume of cube =4/3πr^3/a^3=4/3πr^3/r^3π√π=4/3√π=4:3√π | |
| 31252. |
If a and b are the zeroes of polynomial x^2-5x+m such that a-b=1, find m. |
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Answer» The value of m=6 The value of. m is equal to 6 The value of m is 6. |
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| 31253. |
Find the radius of a circle with area 616cm |
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Answer» 22/7*r^2= 61622 *r^2=13552616=r^2r=14 r = ? area of circle = 616 cm2Area of circle = πr2616 = 22/7 × r2r2 = 616 × 7/22r2 = 28 × 7= 196r = 14 cm 14 is ans Radius= 14 cm. |
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| 31254. |
Find the radius of a circle with area 616 cm |
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Answer» r=7cm r = ? area of circle = 616 cm2Area of circle = πr2616 = 22/7 × r2r2 = 616 × 7/22r2 = 28 × 7= 196r = 14 cm |
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| 31255. |
If a,b,c are in AP then write the arithmetic mean of a and c |
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Answer» Ans is \'b\' B Pls bta do i dont know Answser kya h Btao |
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| 31256. |
Check whether 6* can end with digit 0 for any natural number * |
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Answer» Thanks Only those no. Which have factors 2 ,5 . So,6 can not Only those no. Can end with 0,whose factors contain 2 and 5. But 6 not contain 5 as factor. So it can\'t end with 0 |
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| 31257. |
Show that square of any positive integers is either of the from 4q or 4q+1 for some integers q |
| Answer» Let a any positive integer and q is divisor and r is remainder Where r 0,1,2,3Where r -0a= 4q+ra=4q+0a=4qWhere r- 1a=4q+1Where r-2a=4q+2Where r-3a=4q+3 | |
| 31258. |
I have chapters 3 Ex 3.2 Question no 1 graphs solutions |
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Answer» Equation - x+y =10, =>x=10-y. y-x = 4 ,=> y= 4 +x For 1 equation-If x = 5 ,y=5.x= 4 , y=6.x= 3 ,y= 7.For equation 2-If x=1 ,y=5.x=2 ,y=6.x=-1 , y=3 Isme video kaise bhej skte h koi system h toh batao Go to byjus Mujhe youtube ke video per Nahin samajh mein a raha hai Aise nahi bata paunga Bhai youtube pe video dekh Please mujhe iska video bhejiye Mujhe ismein graph kaise nikalta hai nahin aata hai aap sikhaiye please |
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| 31259. |
Sinθ + cosθ=√3tanθ + cotθ=1 |
| Answer» To prove | |
| 31260. |
For any positive integer n, prove that n3 – n is divisible by 6 |
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| 31261. |
if in a tri. ABC AD perpendicular to BCProve that AC square=AB square +BC square - 2BC×BD |
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| 31262. |
Prove that Cot²Acosec²B-cot²Bcosec²A=cot²A-cot²B |
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| 31263. |
If [email\xa0protected]@=c then [email\xa0protected][email\xa0protected]=? |
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| 31264. |
Find the three term of AP whose sum is 3 and product is 8 |
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Answer» Let three are in AP are a-d,a,a+d.ATQ-a-d+a+a+d=33a=3a=1 -eq-1(a-d)*a*(a+d)=8Put a=1(1-d)*1*(1+d)=8(1-d)(1+d)=81-d sq.=8d=+- √7Hence,1-√7,1,1+√7 1 , (1+√7) and (1-√7) Or 1,1-√7,1-√7 1,1+√7,1+2√7 |
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| 31265. |
Kya iss baar questions ncert k optional wala part se v aayega |
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Answer» Tq... Yes Yes! Hnn Ha..ncert se bhi ayega.. |
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| 31266. |
The distance of the point P - 3, - 4 from the x axis in units is |
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Answer» 5 4 units.. |
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| 31267. |
divides into 3 equal parts A (1,2) B(_3,0) |
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| 31268. |
Three cubes each of side5cm are joined end to end. Find the surface area of resulting cuboid |
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Answer» Yep 350 Length of cuboid = 3×5 = 15 cm, breadth = 5cm and height= 5cm. So, TSA of cuboid= 2(lb+bh+hl) = 2(15×5+5×5+5×15) = 350 cm square. 350cm² Process please CSA of cuboid is 200 cm square and TSA of cuboid is 350 cm square . 375cm square 200 cm square |
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| 31269. |
The points (7,2)and ( -1,0)lie on line |
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Answer» X-4y+1=0 (7,2) lie in 1st quadrant and (-1,0) lie on X\'axis . |
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| 31270. |
Find the largest number which is divisible by both 52 and 25 |
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Answer» 1 Use hcf 1 |
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| 31271. |
The quadratic polynomial whose zeroes are -3 and 4 are |
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Answer» x^2-(α+β)x+αβ=x^2-(-3+4)x+(-3)*4 =x^2-x-12Therefore, the quadratic equation is x^2-x-12. x+3x+4 |
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| 31272. |
Plz solve it.Sum of any two no. is 5.the sum of their reciprocals is 5/6 .find the no. |
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Answer» 3 and 2 The no is 2 or 3. No.s are 2+3=5 and reciprocal 1/2+1/3=5/6 |
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| 31273. |
What is homonogus equation?? |
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| 31274. |
name and number of cards for ncert questions 14 & 15 |
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Answer» thanks There are 52 cards in a deck of cards.26 red card and 26 black card.Red card has two sub division - heart (13) and diamond (13).Black card has also two sub division - spade (13) and club (13).Each sub division has three face cards (king,queen and jack) , one ace and 9 number card (2,3,4,.......,10) |
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| 31275. |
If the sum of the root of the quadratic equation ax square -5x+11=0is 15 yhen the value of a is |
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Answer» a=1/3 a= 1/3. |
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| 31276. |
Find the greatest number that will divide 2930 and 3250 leaving remainders 7 and 11 |
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Answer» 1 Numbers we will use=> 2930 - 7 = 2923=> 3250 - 11 = 3239Thus by Prime Factorisation Method=> 2923 = 37 x 79=> 3239 = 41 x 79Thus HCF(2923,3239) = 79Thus, the greatest number that will divide 2930 and 3250 to leave 7 and 11 as remainder. |
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| 31277. |
1cube |
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| 31278. |
If asin +bcos=c then find asin-bcos =? |
| Answer» Let asinA - bcosA =xSquare both side both equations and add them. Using identity sin2A + cos2A = 1We geta2 + b2 = c2 + x2x = ✓a2 + b2 - c2 | |
| 31279. |
Chapter 2 exercise 2.5 |
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| 31280. |
1+sin-cos/1+sin-cos=1+cos/1-sin |
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| 31281. |
If two coins are tossed simultaneously find the probability of getting 2heads |
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Answer» 1 by 4 When two different coins are tossed randomly, the sample space is given byS = {HH, HT, TH, TT}Therefore, n(S) = 4.Getting two heads:Let E1 = event of getting 2 heads. Then,E1 = {HH} and, therefore, n(E1) = 1.Therefore, P(getting 2 heads) = P(E1) = n(E1)/n(S) = 1/4. 3/4 |
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| 31282. |
If the HCF of 210 and 55 is expressible in the form 210×5+55y then find y |
| Answer» HCF of 210&55 is 5According to the question5=210*5+55y5=1050+55y-1045=55yY=-1045/55Y=-209/11 | |
| 31283. |
Divide 24cin three parts such that they are in ap and their products is 440 |
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| 31284. |
2x- |
| Answer» 2x- ..??Question is not clear.. | |
| 31285. |
If equilateral triangles height is 3.6cm what is side |
| Answer» 2.4√3? | |
| 31286. |
100 surnames were randomly |
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| 31287. |
For what value of k are the roots of quadratic equation x2-(3x-1)x+2k2+2k-11=0 are equal |
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| 31288. |
Why do all the electrons of carbon does not conduct electricity |
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| 31289. |
Lamanmqnan |
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Answer» Sorry ??? |
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| 31290. |
Proof PGT |
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| 31291. |
x+y=5 and 2x-3y=5 |
| Answer» Y= 1 and x= 4. | |
| 31292. |
Sin +cos =1 |
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Answer» what no? No sin²θ + cos²θ=1 |
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| 31293. |
Please send me link last five years cbse Question papers |
| Answer» Refer cbse.inc.in | |
| 31294. |
Arithmetic progression explain |
| Answer» Arithmetic progression is the sequence of numbers. Such that the difference between two consecutive number is constant. | |
| 31295. |
Cot theta -tan theta =2cos² theta-1/sin theta cos theta |
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Answer» Cos theta / sin theta - sin theta/ cos theta= (Cos ^ theta - sin^ theta )/sin theta cos theta=[cos^ theta -(1- sin^ theta)] / sin theta cos theta= (2 cos^ theta -1)/ sin theta cos theta LHS |
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| 31296. |
Write one rational number and one irrational number lying between 0.25 and 0.32 |
| Answer» Rational number - 0.27 and Irrational number- 0.2772777277772... | |
| 31297. |
Prove that the rectangle circumscribe a circle is square |
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| 31298. |
999999999999999+35784437854577 |
| Answer» 1.0357844e15 | |
| 31299. |
2and2 |
| Answer» 22 silly question | |
| 31300. |
2tan30 theatre upon 1+tan square theatre |
| Answer» theatre????? | |