Ahmad bought some fish from a farm. During the first week 1/8 of them died while in next two weeks 3/5 of the remaining died. What fraction of the original fish died in last two weeks?
Correct answer D. 21?40
Tip: press A, B, C or D to answer, and N for the next question.
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Explain me that how?
Let him have bought x kg fish from a farm.
During 1st week fish died= 1/8. of x kg. =x/8 k
Fish left =x-x/8=7x/8 kg.
During the next two week fish died = 3/5 of 7x/8=21x/40 kg.
Fraction of the original fish died in the two weeks=(21x/40)/x= 21/40