The income of A, B and C are In the ratio 3 : 7 : 4 and their expenses in the ratio 4 : 3 : 5. If A saves Rs.300 out of an income of Rs.2400. the savings of B and C are:

Let the income of A, B and C
be 3x, 7x and 4x respectively
and their expenses be 4y,
3y and 5y respectively.
3x = 2400
=> x = 800
4y = 2400 – 300 = 2100
=> y = 525
B’s saving = (7x – 3y)
= (7 × 800 – 3 × 525)
= (5600 – 1575)
= 4025
and C’s savings = (4x – 5y)
= (3200 – 2625) = 575

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