Question

A piece of cloth costs Rs 70. If a piece is 4 metres longer and each metre costs Rs 2
less, the cost remains unchanged. How long is the piece?
(1) 8 m
(2) 9 m
13) 10 m
14 12 m​

Answer 1

Answer:

Let x be the length of cloth

x m cost ₹70

1m cost ₹70/x

now,new length=x+4

new rate=70/x+4

as per given in question difference in both the rate is of 2

:- (70/x)-(70/x+4)=2

x=10,-14

as length can't b negative so length of cloth will be 10 mt.