Question : Directions: Among five objects named K, L, M, N, and O, the weight of M is 60 kg. L is twice as heavy as N. O weighs thrice as heavy as L. K weighs half the weight of O. If K weighs equal to M, what is the weight of N?
Option 1: 30 kg
Option 2: 20 kg
Option 3: 80 kg
Option 4: 40 kg
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Correct Answer: 20 kg
Solution :
Given:
K = M = 60 kg, L = 2N, O = 3L, K = O ÷ 2
As per the given information the weight of K and M is the same and M is 60 kg, so the weight of K will also be 60 kg.
Now, by K = O ÷ 2; 60 = O ÷ 2; O = 120 kg, by O = 3L; L = 120 ÷ 3 = 40; and by L = 2N; N = 40 ÷ 2 = 20 kg
So, the weight of N is 20 kg. Hence, the second option is correct.
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