The three numbers A, B, C are in the ratio 1/2: 2/3: 3/4. The difference between greatest and smallest numbers is 21.The three numbers A, B and C respectively are:
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 42, 56, 63.
LCM of 2, 3, 4 = 12
Multiply by LCM of 2, 3, 4 = 12
A : B : C = 6 : 8 : 9
Let numbers be 6x, 8x, 9x
9x − 6x = 21
x = 7
A=42, B=56, C=63