Question

If the ratio of the first to second number is 3 : 4 and that of the second to the third number is 8 : 5, and sum of three numbers is 190 then the third number is:

• A. 50
• B. 45
• C. 40
• D. 55

Answer 1

Answer:

A. 50

⇒ A : B = 3 : 4 …..(1) ⇒ B : C = 8 : 5 …..(2) Multiplying (1) by 2, ⇒ A : B = 6 : 8 ⇒ B : C = 8 : 5 ⇒ A : B : C = 6 : 8 : 5 Sum of ratio = 6 + 8 + 5 = 19 ⇒ C = (5/19) × 190 = 50