daily earning of two persons are in the ratio 5:6 and their daily expenses are in the ratio 7:9.If each saves Rs.60 per day,their daily income in Rs
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Let their earnings be 5x and 6x
And their expenses be 7y and 9y.
According to the question,
5x-7y=60...(i) ×6
6x-9y=60...(ii) ×-5
=> 30x-42y=360...(iii)
-30x+45y=-300....(iv)
On adding iii and iv,
3y=60
y=20
On putting the value of y to equation (i),
5x-140=60
5x=60+140
x=220/5=44
.•. daily earning of 1st = 5×44=Rs220
and that of 2nd = 6×44=Rs264
.•.expensesof 1st = 7×20=Rs140
and that of 2nd = 9×20=Rs180
Hope it helped you...
Please mark it as brainliest....
^_^
And their expenses be 7y and 9y.
According to the question,
5x-7y=60...(i) ×6
6x-9y=60...(ii) ×-5
=> 30x-42y=360...(iii)
-30x+45y=-300....(iv)
On adding iii and iv,
3y=60
y=20
On putting the value of y to equation (i),
5x-140=60
5x=60+140
x=220/5=44
.•. daily earning of 1st = 5×44=Rs220
and that of 2nd = 6×44=Rs264
.•.expensesof 1st = 7×20=Rs140
and that of 2nd = 9×20=Rs180
Hope it helped you...
Please mark it as brainliest....
^_^
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