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Surds and Indices

If m and n are whole numbers such that mn = 121, the value of (m – 1)n + 1 is:

A.1

B.10

C.121

D.1000

Show Answer

Answer=Option D

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(0.04)-1.5 = ______?

A.25

B.125

C.250

D.625

Show Answer

Answer=Option B

Categories Aptitude Mcqs, Surds and Indices Leave a comment

(25)7.5 x (5)2.5 ÷ (125)1.5 = 5______?

A.8.5

B.13

C.16

D.17.5

E.None of these

Show Answer

Answer=Option B

Categories Aptitude Mcqs, Surds and Indices Leave a comment

(256)0.16 x (256)0.09 = ______?

A.4

B.16

C.64

D.256.25

Show Answer

Answer=Option A

Categories Aptitude Mcqs, Surds and Indices Leave a comment

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

A.0

B.2

C.4

D.6

Show Answer

Answer=Option C

Categories Aptitude Mcqs, Surds and Indices Leave a comment

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

A.25

B.125

C.625

D.1625

Show Answer

Answer=Option A

Categories Aptitude Mcqs, Surds and Indices Leave a comment

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

Show Answer

Answer=Option C

Categories Aptitude Mcqs, Surds and Indices Leave a comment

(17)3.5 x (17)? = 178

A.2.29

B.2.75

C.4.25

D.4.5

Show Answer

Answer=Option D

Categories Aptitude Mcqs, Surds and Indices Leave a comment

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