Weight of A and B are in the ratio of 3 5 If the weight of A is increased by 20 percent and then the...........

Quantitative Aptitude ( CCS) Percentage

Weight of A and B are in the ratio of 3:5. If the weight of A is increased by 20 percent and then the total weight becomes 132 kg with an increase of 10 percent. B weight is increased by what percent.

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Explanation:

Weight of A and B are 3x and 5x.
Initial weight before increase = (132*100)/110 = 120
8x = 120. X = 15
Initial weight of A and B are 45 and 75 kg respectively.
New weight of A = 54 so weight of B = 132 – 54 = 78.
So % increase = [(78-75)/75]*100 = 4 %