Seema bought 4 apples and 3 bananas for 215 rupees. Next day she bought 3 apples and dozen bananas for 210 rupees. How much did each banana and apple cost?
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let , the cost of each Apple be x.
and the cost of each banana be Y.
on first day ,
4x+3y=215 .....eq1
on second day,
3x+12y=210 ......eq2
on multiplying eq1 by 4,
16x+12y=860 ......eq3
now subtracting eq2 from eq3,then
16x+12y-3x-12y=860-210
13x=650
x=50
put this value in eq2,
3×50+12y=210
12y=210-150
y=5
and the cost of each banana be Y.
on first day ,
4x+3y=215 .....eq1
on second day,
3x+12y=210 ......eq2
on multiplying eq1 by 4,
16x+12y=860 ......eq3
now subtracting eq2 from eq3,then
16x+12y-3x-12y=860-210
13x=650
x=50
put this value in eq2,
3×50+12y=210
12y=210-150
y=5
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