Quantitative Aptitude Ques 1602

Question: Directions: What value will come in place of question mark (?) in the given questions?

14% of 255 + ?% of 405 = 124.8

Options:

A) 22

B) 24

C) 18

D) 15

E) None of these

Show Answer

Answer:

Correct Answer: A

Solution:

  • [a] 14% of 255 + ? % of 405 = 124.8
    $ \Rightarrow $ $ 255\times \frac{14}{100}+405\times \frac{?}{100}=124.8 $
    $ \Rightarrow $ $ 35.7+4.05\times ?=124.8 $
    $ \Rightarrow $ $ 4.05\times ?=124.8-35.7 $
    $ \Rightarrow $ $ 4.05\times ?=89.1 $
    $ \Rightarrow $ $ ?=\frac{89.1}{4.05}=22 $
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