Question: Directions: What will come in the place of question mark (?) in the following questions. [IBPS (Clerk) Pre 2015]
$ (0.4\times 450)\div 4=5\times {3^{?}} $
Options:
A) $ 3 $
B) $ 1 $
C) $ 2 $
D) $ -3 $
E) $ -2 $
Show Answer
Answer:
Correct Answer: C
Solution:
- $ (0.4\times 450)\div 4=5\times {3^{?}} $
$ \Rightarrow $ $ \frac{180}{4}=5\times {3^{?}} $
$ \Rightarrow $ $ 9={3^{?}} $
$ \Rightarrow $ $ {3^{?}}=3^{2} $
$ \Rightarrow $ $ ?=2 $