Question

if 7 and half metre of cloth cost rupees 300 how much will 3 1 by 4 m in cost? ​

Answer 1

Answer:

the cost of 7m of cloth is rs1470

therefore, the cost of 1m of cloth = \frac{1470}{7}=rs.42

cost of 5m of cloth rs.42\times5=210

hence, the cost of 5m of cloth is rs.210.

Answer 2

In the above question given that

the cost price of $7$ and half meter is $Rs 300$

we have to find the cost of $31 by 4$ meter

now we have

price of $1$ meter cloth is $\frac{300}{7}$

$1$ meter price of cloth $Rs 40$

Then $31 by 4$ meter $=7.75$ meter

$=7.75*40\\310$

hence the $31 by 4$ meter cost is $Rs 310$ meter