RRB Technician 2013 Ques 117
Question: If $ {{(41)}^{2}} $ is added to the square of a number, the answer so obtained is 7457. What is the number?
Options:
A) 76
B) 63
C) 81
D) 82
Show Answer
Answer:
Correct Answer: A
Solution:
- Let the required number be x. Therefore, $ x^{2}+{{(41)}^{2}}=7457 $
$ \Rightarrow $ $ x^{2}=7457-1681 $ $ =5776 $
$ \Rightarrow $ $ x=76 $
BETA
