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Aptitude Round Question-Surds and Indices-Free Download



1.

(17)3.5 x (17)? = 178

A.

2.29

B.

2.75

C.

4.25

D.

4.5

Answer: Option D


Given that 100.48 = x, 100.70 = y and xz = y2, then the value of z is close to:

A.

1.45

B.

1.88

C.

2.9

D.

3.7

Answer: Option C

If 5a = 3125, then the value of 5 (a - 3) is:

A.

25

B.

125

C.

625

D.

1625

Answer: Option A

If 3(x - y) = 27 and 3 (x + y) = 243, then x is equal to:

A.

0

B.

2

C.

4

D.

6

Answer: Option C


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