RRB Technician 2013 Ques 118
Question: What is the least number to be added to 4700 to make it a perfect square?
Options:
A) 74
B) 69
C) 76
D) 61
Show Answer
Answer:
Correct Answer: D
Solution:
- Clearly, 4700 lies between the squares of 68 and 70. Therefore, its nearest square is (69)2. So, the required number $ ={{(69)}^{2}}-4700 $ $ =4761-4700=61 $