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Question

# Rohan works 9 hours a day, Seema 8 hours a day, and both work for 7 days. Which expression represents the total number of hours, they both work in a week?​

A
(9 + 8) × 7
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B
(9 + 8) + 7
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C
(8 + 7) × 9
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D
(8 × 9) × 7
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Solution

## The correct option is A (9 + 8) × 7Rohan works for 9 hours and Seema works for 8 hours. So, we have to add them first. 9+8 So, Rohan and Seema together work(9 + 8) hours a day. Next to find the total hours of work in a week, we have to multiply 7 with (9 + 8). = (9 + 8) × 7 Rohan and Seema work for (9 + 8) × 7.

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