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
Answer: Option D
Solution(By Examveda Team)
We know that 112 = 121.Putting m = 11 and n = 2, we get:
(m - 1)n + 1 = (11 - 1)(2 + 1) = 103 = 1000
This Question Belongs to Arithmetic Ability >> Surds And Indices
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