Q. A number exceeds 20% itself by 40. The number is ?
β
Correct Answer: (A)
50
Explanation: Let the required number be N.
Then, N - 20% of N = 40
⇒ N - 20N/100 = 400
⇒ 5N - N = 200
∴ N = 50
Then, N - 20% of N = 40
⇒ N - 20N/100 = 400
⇒ 5N - N = 200
∴ N = 50
Explanation by: Yogesh
Let the required number be N.
Then, N - 20% of N = 40
⇒ N - 20N/100 = 400
⇒ 5N - N = 200
∴ N = 50
Then, N - 20% of N = 40
⇒ N - 20N/100 = 400
⇒ 5N - N = 200
∴ N = 50