Question

17. The level of water in a vessel falls from
a height 36 cm to 16 cm in 6 minutes as
water flows out through a hole in its
bottom. At the end of next 3 minutes, the
height of water level in the vessel will be
1) 6 cm
2) 3 cm
3) 9 cm
4) 2 cm​

Answer 1

Answer:

6 cm

Explanation:

This problem is related to direct proportion problems where one relationship is given and we need to use that to find the other one.

Given that height goes from 36 to 16 in 6 minutes so per minute change in water height would be;

= (36 - 16) / 6

= 3.33

Now for further next 3 minutes;

Water drop = 3 x 3.33

Water drop = 10

Final water level = 16 - 10 = 6 cm