A tank was 1/2 full of water. after 420 gallons had been taken out, it was 1/8 full. find the capacity of the?

Question

a tank was 1/2 full of water. after 420 gallons had been taken out, it was 1/8 full. find the capacity of the tank?

please show the solution

Answer 1

1120. did it in my head!

Answer 2

the correct answer is 1120

3/8 = 420 so 420/3 = 1/8 of the tank

420/3 = 140 so if 140 = 1/8 of the tank

then 8 * 140 = capacity of the tank

so the capacity of the tank is 1120 gal.

summer schoool?

Answer 3

420 divided by 3 = 140 +420 =560 times 2 = 1120

Answer 4

1120 gallons,   420 gallon would be 3/8 so 1/8 is 140 gallons which = 560 gallons to 1/2 tank

Answer 5

0,5 - 420gall = 0.125

0.5 - 0.125 = 0.375

0.375 = 420gall

0.250 = 280gall

0.125 = 140gall

tank capacity is 1120gall ( 420 + 420 +280 )