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The incomes of A,B and C are in a ratio of 7:9:12 and the expenditures are in a ratio of 8:9:15. If A saves 1/4 of its income then what will be the saving ratio of A ,B and C?
56: 99: 69
99: 56: 69
56:99:69
49: 69: 56
Answer with explanation
Answer: Option CExplanation
if u assume x and y and solving u will be annoyed.
Provided 1/4 is the saving, 3/4 is the expenditure
so Expenditure=3, Income = 4
first make A’s Income and Expenditure ratio parts as below
A
7*8 9*7 12*7
8*7 9*7 15*7
Now make first one as 4 parts by multiplying 4 and second make 3 parts by multiplying 3
A’s Income = 7*8*4 = 224
A’s Expenditure = 8*7*3=168 Saving = 56
Now
B’s Income = 9*8*4 = 288
B’s Expenditure = 9*7*3=189 Saving = 99
A’s Income = 12*8*4 = 384
B’s Expenditure = 15*7*3=315 so Saving = 69
Ratio 56:99:69.
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