Sareena bought dress material to make frocks for a function of a school. For every
3 m of cloth she needs 2 m of lace. She also needs 10% of cloth and 5% of the lace
for the margin. The cost of cloth is 100 per metre and the cost of the lace is
10 per metre. She spends * 70,200 to buy materials. Find how many frocks she
prepared?
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Answer:Total shirt=x m
Total trousers=y m
3n shirt=2 m trousers
1m shirt=2/3 m trousers
x m shirt =2/3x m trousers
y=23x
-(1) and x=3/2y
Total cost of shirt=50x
Total cost of Trousers=90y
SP=CP+profit
=50x+50x⋅12100
SP of shirt=50x(1+12100)=50x⋅112100
SP of trousers=90y(1+10100)=90y⋅110100
50(32y)+90y⋅110100=36,600
y=200m.
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