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Aptitude - Surds and Indices

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Exercise

  • General Questions
"Everyone is wise until he speaks."
- (Proverb)
1. 

(17)3.5 x (17)? = 178

A. 2.29B. 2.75
C. 4.25D. 4.5

2. 

If a x - 1 = b x - 3 , then the value of x is:
b a

A.
1
2
B. 1
C. 2D.
7
2

3. 

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

A. 1.45B. 1.88
C. 2.9D. 3.7

4. 

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

A. 25B. 125
C. 625D. 1625

5. 

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

A. 0B. 2
C. 4D. 6




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