Surds and Indices – Aptitude Questions and Answers | Online Surds and Indices MCQ Aptitude Test

Surds and Indices – Aptitude Questions and Answers | Online Surds and Indices MCQ Aptitude Test

1. (17.5) x (17.5) = 178
a. 2.29
b. 2.75
c. 4.25
d. 4.5

Show Answer

2. If an x – 1 Equals b x – 3, then the value of x is: b a.
a. 1/2
b. 1
c. 2
d. 7/2

Show Answer

3. If 100.48 = x, 100.70 = y, and xz = y2, the value of z is approximately:
a. 1.45
b. 1.88
c. 2.9
d. 3.7

Show Answer

4. If 5a = 3125, the value of 5(a – 3) is as follows:
a. 25
b. 125
c. 625
d. 1625

Show Answer

5. If 3(x – y) = 27 and 3(x + y) = 243, then the value of x is:
a. 0
b. 2
c. 4
d. 6

Show Answer

6. What is the product of (256)0.16 and (256)0.09?
a. 4
b. 16
c. 64
d. 256.5

Show Answer

7. [(10)150 (10)146] is the value.
a. 1000
b. 10000
c. 100000
d. 10 to the power 6

Show Answer

8. What is the sum of 1 + 1 + 1?
1 + x(b – a) + x(b – a) + x(b – a) + x( (c – a)
1 + x(a – b) + x(a – b) + x(a – b) + x( (c – b)
1 + x(b – c) + x(a – b) + x(a – b) + x( (a – c)
a. 0
b. 1
c. xa – b – c
d. None of these

Show Answer

9. (125)1.5 x (25)7.5 = 5?
a. 8.5
b. 13
c. 16
d. 17.5

Show Answer

10. (0.04) + 1.5 =?
a. 25
b. 125
c. 620
d. 625

Show Answer

11. 9n x 3n – 1 = 11. (243)n/5 x 32n + 1 =?
a. 1
b. 2
c. 9
d. 3n

Show Answer

12. 1 + a =? 12. 1 + 1 =? (n – m) 1 plus a (m – n)
a. 0
b. 1/2
c. 1
d. am + n

Show Answer

13. If m and n are both whole numbers, and mn = 121, (m – 1)n + 1 equals:
a. 1
b. 10
c. 121
d. 1000

Show Answer

14. xb/xc(b + c – a) is a 14. (c + a – b) xc/xa xc (a + b – c) = xa/xb(a + b – c) = xa/xb(a + b – c) =?
a. xabc
b. 1
c. xab + bc + ca
d. xa + b + c

Show Answer

15. If x = 3 + 22 and root x -1/x is equal to:
a. 1
b. 2
c. 22
d. 33

Show Answer