An author received Taka 0.80 in royalties for each of the first 100,000 copies of his book sold, and Taka 0.60 in royalties for each additional copy sold. If he

An author received Taka 0.80 in royalties for each of the first 100,000 copies of his book sold, and Taka 0.60 in royalties for each additional copy sold. If he received a total of Taka 260,000 in royalties, how many copies of his book were sold?

An author received Taka 0.80 in royalties for each of the first 100,000 copies of his book sold, and Taka 0.60 in royalties for each additional copy sold. If he received a total of Taka 260,000 in royalties, how many copies of his book were sold? ?

Created: 1 week ago | Updated: 1 week ago | Created By:

Imran Ahmed

230,000

350,000

380,000

400,000

0 1

Best Answer Explained in Below-:

Let the number of copies sold be X. Then, 100000×0.8 + (X - 100000)×0.6 = 260000 or, 80000 + 0.6X - 60000 = 260000 or, 0.6X = 260000 - 80000 + 60000 or, 0.6X = 240000 or, X = 240000/0.6 = 400000 copies

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