RRB Technician 2013 Ques 113
Question: The difference between 38% of a number and 24% of the same number is 135.10. What is 40% of that number?
Options:
A) 394
B) 370
C) 378
D) 386
Show Answer
Answer:
Correct Answer: C
Solution:
- Let the number be x. According to the question, $ x\times \frac{38}{100}-x\times \frac{24}{100}=135.10 $
$ \Rightarrow $ $ x( \frac{38-24}{100} )=135.10 $
$ \Rightarrow $ $ x=\frac{135.10\times 100}{14}=965 $ Now, 40% of $ 965=965x-40-=386 $
BETA
