I would solve the above problem as follows :NerdyMath wrote:hoddle wrote:Hi

Need help on the below.

28x18x15x4/5=6048

Find the base area.

Base area of A: base area of B

28x18 : 168

504 : 168

1.5 times x 168 = 252

6048/(252+504)= 8

8 x 252 = 2016 cm sq.

Solved by DS.

28 x 18 x 15 = 7560

(4/5) x 7560 = 6048

28 x 18 x h + 168 x 1.5h = 504h + 252h = 756h ------- 7560

1h ------- 6048/756 = 8

1.5h ------- 8 x 1.5 = 12

168 x 12 = 2016

Ans : 2016 cm^3.