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Salam earns Tk. 8.50 per hour on days other than Friday and twice the rate on Friday. Last week he worked a total of 50 hours including 8 hours on Friday. What is his earning for the week?

Salam earns Tk. 8.50 per hour on days other than Friday and twice the rate on Friday. Last week he worked a total of 50 hours including 8 hours on Friday. What is his earning for the week? Correct Answer Tk. 493

During the week, Salam worked a total of 50 - 8 = 42 hours at a rate of Tk. 8.50 per hour.On Friday, he worked 8 hours at a rate of Tk. 8.50 × 2 = Tk. 17.00 per hour.Total earnings for the week = 42 × 8.50 + 8 × 17 = TK. 493

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