I carried 1000 kg of watermelon in summer by train. In the beginning, the water content was 99%. By the time I reached the destination, the water content had dropped to 98%. The reduction in the weight of the watermelon was-

Options

A. 10 kg
B. 50 kg
C. 100 kg
D. 500 kg

Answer

D

Explanation

Initially `1000kg [ 990kg " water"+10 kg" rest"]`
Now x kg melon `[(98x)/(100)" water"+(2x)/(100)" rest"]`
Weight of solid part should remain same
`(2x)/(100)=10 rArr x =500`
Weight reduction 1000-500=500kg