Question

Chalky Chip can dip 4 strawberries per minute in chocolate. Sunny Day can dip 6 strawberries per minute. Chalky starts dipping at 10:00 a.M. Sunny starts 15 minutes later. If they both work continuously, at what time will they finish dipping 500 strawberries together?

Answer 1

11:01 AM

Explanation:

Number of strawberries dipped by Chalky Chip in a minute = 4 per minute

Number of strawberries dipped by Sunny Day in a minute = 6 per minute

Time at which Chalky starts dipping = 10 AM

As per question statement, Chalky works alone for 15 minutes.

Number of strawberries dipped by Chalky in this time period = 15
`*` 4 = 60

Total number of strawberries to be dipped = 500

Number of strawberries still to be dipped = 500 - 60 = 460

Now, at 10:15 AM, Chalky and Sunny start working together.

Number of strawberries dipped in a minute when they work together = 4 + 6 = 10 per minute

Time taken to dip the remaining 460 strawberries =
`(460)/(10)` = 46 minutes

Therefore, at 10:15 AM + 46 = 11:01 AM, a total of 500 strawberries will be dipped.