Correct Answer - Option 2 : -57 ∶ 11
Given:
a ∶ b ∶∶ 3 ∶ 7
Calculation:
According to the question
a ∶ b ∶∶ 3 ∶ 7
⇒ a/b = 3/7
Now, (5a + 6b) = (5 × 3 + 6 × 7) = 57
(a - 2b) = (3 - 2 × 7) = -11
(5a + 6b) ∶ (a - 2b) = 57 ∶ (-11)
⇒ -57 ∶ 11
∴ The value of (5a + 6b) ∶ (a - 2b) is -57 ∶ 11.
