due to some mishap Ahmed lost 12 1/2 of his total earning. He spent 70% of the remaining amount and is left with $2100 in his pocket. find his total earning
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Answer:
total earning =X
25/2*X/100 = X/8
remain = x-x/8
7x/8 *30/100
7x*3/80
21x/80=2100
X/80 = 100
X= 800
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