Q13
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
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
We know that 112 = 121.Putting m = 11 and n = 2, we get:
(m - 1)n + 1 = (11 - 1)(2 + 1) = 103 = 1000