Question

At the beginning of the week, the water tank of the school was 6/7 full. At the end of the week, it was 2/7 full. If the capacity of the tank is 35 cubic meters, how much water was used?​

Answer 1

Answer:

amount of water used = 20 cubic m

Step-by-step explanation:

Capacity of tank = 35 cubic m

Initial volume of tank = (6/7) × 35 = 30 cubic m

Final volume of tank = (2/5) × 35 = 10 cubic m

Therefore amount of water used = 30-10 = 20 cubic m

Answer 2

Answer:

capacity of tank =35 cubic meter

tank full at the beginning of the week in school = (6/7)×35 =30

tank full at the end of week =( 2/7)×35 =10

amount of water used =30- 10 ( cubic m )

=20 cubic m