A worker is paid tk 42 per hour for the first 8 hours and then tk 52 for each additional hour. If on a certain day, his average pay was tk 44/hour how many hours did work on that day?
Solution
Correct Answer: Option B
মনেকরি,
অতিরিক্ত সময় y
প্রশ্নমতে,
42 x 8 + 52y = (8+y) x 44
⇒ 336 + 52y = 352 + 44y
⇒ 52y - 44y = 352 - 336
⇒ 8y = 16
∴ y = 2
মোট কাজ করে 8 + 2
= 10
অতিরিক্ত সময় y
প্রশ্নমতে,
42 x 8 + 52y = (8+y) x 44
⇒ 336 + 52y = 352 + 44y
⇒ 52y - 44y = 352 - 336
⇒ 8y = 16
∴ y = 2
মোট কাজ করে 8 + 2
= 10
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