A quantity of water at 20^oC is mixed with another quantity of water at 70^oC. The final steady temperature of the mixture is 40^oC. Determine the ratio of the mass of the cold water to that of the hot water

7:2

3:2

2:5

1:2

Correct Option

No video available

3 years ago

where did the 30 come from?
did they subtract 40 from 70??

1 year ago

If its 20c:30c.. How come you swapped it to 3:2

ceoofwahala

20th June, 2026

Chemistry

2 comments

ASSAAS

20th June, 2026

English Language

5 comments

infinitehoaxx

21st May, 2026

Computer

4 comments

A quantity of water at 20oC is mixed with another quantity of water at 70oC. The final steady temperature of the mixture is 40oC. Determine the ratio of the mass of the cold water to that of the hot water