Practicing Success
Three numbers A, B and C are in the ratio 6 : 5 : 4. If we add 15 in each number then the ratio becomes 15 : 13 : 11. Find number A. |
60 50 40 70 |
60 |
A : B : C 6 : 5 : 4 ⇒ ×4 (to make diff equal b/w two ratios) 15 : 13 : 11 ⇒ ×2 We get, A : B : C 24 : 20 : 16 ↓ +6 ↓ +6 ↓+6 30 : 26 : 22 ATQ, 6R = 15, 1R = \(\frac{15}{6}\) Hence, ⇒ A = 24R = 24 × \(\frac{15}{6}\) = 60 |