Question

Nisha's mother is baking cookies for her. She starts baking them at 3:30 and cookies need 45 minutes to bake. At what time she should take them out of the oven?

• A. 3:75
• B. 4:15
• C. 4:00
• D. 4:30

Answer 1

The correct option is B 4:15

The cookies need 45 minutes for baking and it started at 3:30.
To get the end time 45 minutes needs to be added to 3:30. So, 30+45 minutes is 75 minutes. But we know that 60 minutes is equal to 1 hour, so take out 60 minutes from 75 and take it as 1 hour. Now 75 minutes is 1 hour and 15 minutes.
3 hours 75 minutes = 3 hours + 1 hour + 15 minutes = 4 hours 15 minutes
So, time at which the baked cookies should be taken out is 4:15.