NTSE Maths Previous Year 500 plus

,Ques 1
Which is the greatest number amongst 21/2, 31/3, 81/8 and 91/9?
[NTSE Stage-2 2011]
1. 91/9
2. 81/8
3. 31/3
4. 21/2
Ans: 3




Ques 2
If the product of two number is 21 and their difference is 4, then the
ratio of the sum of their cubes of the difference of their cubes is
[NTSE Stage-2 2011]
1. 185:165
2. 165:158
3. 185:158

, 4. 158:145
Ans: 3




Ques 3
In a quadrilateral ABCD, if AB || CD, angle D = 2(angle B), AD = b
and CD = a, then the side AB is of the length
[NTSE Stage-2 2011]
1. a/2 + 2b
2. a + 2b
3. 2a – b
4. a+b
Ans: 4

, Ques 4
Two candles have different lengths and thickness. The shorter lasts 11
hours and longer 7 hours when both are lit simultaneously. If after 3
hours of their being lit together at the same time, both have the same
length, then the ratio of their original lengths is
[NTSE Stage-2 2011]
1. 5:8
2. 11 : 14
3. 10 : 13
4. 7 : 11
Ans: 4