Answers

2015-05-06T17:06:58+05:30
Let x = Cost Price

AsĀ 15+5=20,
20\% of x=70

\frac{20}{100}x=70

x=350

Thus the cost price of chair is \boxed{350}.
2 1 2
2015-05-06T17:55:13+05:30
Let CP be x.
Therefore, original SP=x-x*15/100
=17x/20
If he had sold it for 17x/20+70 his SP would have been x+x*5/100
=21x/20 (since he would make a profit of 5%)
given
17x/20+70=21x/20
or,70=21x/20-17x/20
or,70=(21x-17x)/20
or,70=4x/20
or,70=x/5
or,x=350
Ans:The cost price of the chair is Rs.350
0