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20. Ten years ago the sum of ages of A, B and C was 60
x + 2x + 3x = 60
x = 10
B's present age = 2x + 10
= 2 (10) +10
= 30
Ans : B
21. 2q = 56 + 80 [exterior angle theorem]
2q = 136
q = 68
q = r + 40
r = 68 - 40
r = 28
q - r = 40
Ans : A
22. x + t = x + z - (z - t) = 4 - ( 7 )
\
x + t = -3
Ans : C
23. If k and l are perfect squares,
Let k = 4, l = 9
A. k - l = 9 - 4 = 5 is not a perfect square.
i.e. square root is 2.236.
B. k l = 9 ´
4 = 36
i.e. square root is 6
C. 25k = 25 ´
4 = 100 is a perfect square
i.e. square root is 10.
D. l 2 = 92 = 81 is a perfect square
i.e. square root is 9.
E. k3 = 43 = 64 is a perfect square
i.e. square root is 8.
Ans : A
24. Let the 3 numbers be a, b, c.
a + b = 19 --- (I)
b + c = 33 --- (II)
c + a = 24 --- (III)
-------------------------
2a + 2b + 2c = 76 Adding (I), (II) and (III)
a + b + c = 38
Arithmetic Mean = a
+ b + c
2
=
19
Ans : D
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Index
Test 1
Section 1 : Verbal Reasoning
Section 2 : Mathematical Reasoning
Section 3 : Verbal Reasoning
Section 4 : Mathematical Reasoning
Section 5 : Reading Comprehension
Section 6 : Mathematical Reasoning
Section 7 : Mathematical Reasoning
Answer Key To Test 1
Answer Explanation To Test 1
Section 1 : Verbal Reasoning
Section 2 : Mathematical Reasoning
Section 3 : Verbal Reasoning
Section 4 : Mathematical Reasoning
Section 5 : Reading Comprehension
Section 6 : Mathematical Reasoning
Section 7 : Mathematical Reasoning
Test 2
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