Math, asked by bsanieka, 9 months ago

A bookstore had 70 copies of a magazine. Yesterday, it sold 2/5 of them. Today, it sold 5/7 of what remained. How many copies does the bookstore have left?

Answers

Answered by BrainlyShivansh
0

Answer:

12 books

Step-by-step explanation:

Total books=70

Fraction of book sold yesterday=2/5

No. of book sold=2/5×70=28

No. of books remaining=70-28=42

Fraction of remaining books sold today=5/7

No. of books sold today=42×5/7=30

No. of books left=42-30=12

Ans. There are 12 books left in the store.

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Answered by goyalnetra0
0

Answer:

12

Step-by-step explanation:

the copies of a magazine the bookstore had at first: 70

no. of sold copies of the magazine: 2/5 of 70

no of copies of the magazine sold on the second day: 5/7 of what was left.

here, on the first day, they sold 2/5 of the 70 books

= 2/5 x 70

= 2 x 14

= 28

no of remaining books: 70 - 28 = 42

so, now, they sold 5/7 of the remaining books:

= 5/7 x 42

= 5 x 6

= 30

the number of books that the bookstore had sold in all: 28 + 30 =58.

the number of books that the bookstore had left: 70 - 58 = 12

so, the bookstore had 12 books left

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