Question

The temperature of a pot of hot water is 200.5. The temperature of the water decreases 3.5 per minute. What is the temperature of the water after 15 minutes?

Answer 1

The temperature of the liquid 15 minutes later is
`151.5`

Explanation:

This is an example of arithmetic progression

We need to find 15 th term

Here

`a=200.5\\\\d=-3.5\\\\t_(15)=200.5+(15-1)*-3.5\\\\=151.5`