Income of Gupta and Verma are in ratio 9:4 and their expndture are in ratio 7:3 .If each saves Rs 2000 thn Gupta's expndture is??
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Hey!!!!
Let their income be 9x and 4x
Let their expenditures be 7y and 3y
Since their saving is Rs.2000
We have (9x - 7y = 2000)3
and
(4x - 3y = 2000)7-------(1)
By Eliminating We have
27x - 21y = 6000
28x - 21y = 14000
(-). (+). (-)
=> -x = -8000
=> x = 8000
Use this in (1)
=> 4(8000) - 3y = 2000
=> 3y = 30000
=> y = 10000
Gupta's Expenditure = 7y
=> 7(10000)
=> Rs.70000
Hope this helps
Let their income be 9x and 4x
Let their expenditures be 7y and 3y
Since their saving is Rs.2000
We have (9x - 7y = 2000)3
and
(4x - 3y = 2000)7-------(1)
By Eliminating We have
27x - 21y = 6000
28x - 21y = 14000
(-). (+). (-)
=> -x = -8000
=> x = 8000
Use this in (1)
=> 4(8000) - 3y = 2000
=> 3y = 30000
=> y = 10000
Gupta's Expenditure = 7y
=> 7(10000)
=> Rs.70000
Hope this helps
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