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Question

Please help with this question. thanks. 

The answers that I got. 

a) 8.75cm

b) 21 litres

Answer

50 x 20 x 42 = 42000
40 x 30 + 50 x 20 x 3 = 4200
42000 / 4200 = 10 cm as (a)’s answer

42000 – 40 x 30 x 10 x 2 = 18000
                                              = 18 litres as (b)’s answer

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This is a Quantity each Product question. 

     Height    Base      Product  
Tank A   1u  1200  1200u
Tank B   3u  1000  3000u
       4200u

a)

4200u = 1000 ×  42

1u = 42000 ÷ 4200 = 10 cm

b)

3000u – 1200u = 1800u

1800u = 10 × 1800 = 18000 cm3 = 18 litres

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Thank you so much for the answer. Appreciate very much. 

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