The sum of weights of A and B is 80 kg. 50% of A's weight is times the weight of B. Find the dfference between their weights.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 20kg
Let the weight of A and B be 'a' and 'b'.
50% of a = 5/6 of b
a/b = 5/3.
5x + 3x = 80 kg
8x = 80 kg
x = 10 kg.
Difference between them = 5x - 3x = 2x
2x = 2 × 10 = 20 kg.