Surds and Indices - Aptitude Questions and Answers Part 2
6. (256)0.16 * (256)0.09 = ?
a. 4
b. 16
c. 64
d. 256.25
7. Given a = 3 + 2√2. Find (√a - 1/√a).
a. 1
b. 2
c. 2√2
d. 3√3
8. (xb/xc)(b + c - a) * (xc/xa)(c + a - b) * (xa/xb)(a + b - c) = ?
a. 1
b. x
ab + bc + ca
c. x
a + b + c
d. x
abc
9. Given: Two whole numbers x and y, such that xy = 121.
Find the value of (x - 1)y + 1
a. 1
b. 10
c. 121
d. 1000
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