Question

A and B have monthly incomes in the ratio 5 : 6 and monthly expenditures in the ratio 3 : 4. If they save ₹ 1800 and ₹ 1600 respectively, find the monthly income of B.
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Answer 1

Answer:

A and B have monthly incomes in the ratio 5 : 6 and monthly expenditures in the ratio 3 : 4. If they save ₹ 1800 and ₹ 1600 respectively, find the monthly income of B :

₹ 3400

₹ 2700

₹ 1720

₹ 7200

Correct Option: D

Step-by-step explanation:

Given

Monthly income of A=5Monthly income of B6

∴  Monthly income of A = 5x

and that of B = 6x (x is a constant)

According to the question

5x − 1800=36x − 16004

20x – 7200 = 18x – 4800

2x = 2400

∴  x = 1200

∴  Monthly income of B

= 1200 × 6 = ₹ 7200