If three numbers are in the ratio 2 : 3 : 5 and the twice of their sum is 200. The square of the largest of three numbers is:
Answer & explanation
Correct answer: option 1
Here,
A : B : C = 2 : 3 : 5
⇒ 2(2 + 3 + 5) units = 200
⇒ (2 x 10)units = 200
⇒ 20 units = 200
⇒ 1 unit = 10,
⇒The square of the largest of three numbers = 5 x 10 = 50 x 50 = 2500.