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?

(9 + 8) × 7

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(9 + 8) + 7

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(8 + 7) × 9

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(8 × 9) × 7

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Solution

The correct option is A (9 + 8) × 7
Rohan 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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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?​

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?