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5000x3 + 4x4500 + 5x3600

15000 + 18000 + 18000 = 51000

Ratio of profit


A

1000

B

800

That is 5:4

So 5x = 51000

x = 10200

So 4 x 10200 = 40800

40800/12

3400

GMAT quant instructor Lagos Nigeria


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