Question

in a store window, there was a box of berries having a total weight of 200 kg. the berries were 99% moisture, by weight. after two days in the sun, the moisture content of the berries was only 98%, by weight. what was the total weight of the berries after two days, in kg?

Answer 1

The total weight of the berries after 2 days is 100kg

We have been given that,

Initial total weight of the berries in the box = 200kg

In which the moisture content = 99%

Hence the weight of berry fruit present = 200 – (200*0.99)

                                                                               = 200 – 198

                                                                               = 2kg

Now after 2 days the moisture content = 98%

The percentage of the berry fruit present after 2 days = 2%

Note that the amount of the berry fruit present does not change only the amount of water changes.

Hence we have been asked that 2% of what total weight of the berries will make 2kg. That is,

2% of n = 2kg

0.02 * n = 2       (As ‘of’ is multiplication)

n = 2/0.02

n = 100

Thus the total weight of the berries after 2 days is 100kg

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