Question

find the cost of 3 whole 1/3 metres of cloth at ₹ 40 whole1/2 per metre​

Answer 1

★Given :

$Cost\:of \:\frac{1}{3} m\:of \:cloth = 40 \: rupees$

★To find :

$Cost\:of\: 3 \frac{1}{3} m \:cloth$

★Solution :

$for \frac{1}{3} m = 40 \\ \\ \\ for \:1 \:m = \\ \\ \\ \frac{1}{\cancel{3}} \times \cancel{3} = 40 \times 3 \\ \\ \\ for \: 1m \: cost = 120 \:rupees \\ \\ \\ cost\: for\: 3\frac{1}{3} m \\ \\ \\ 1 \times 3\frac{1}{3} = 120 \times 3\frac{1}{3} \\ \\ \\ = \cancel{120} \times \frac{10}{\cancel{3}} \\ \\ \\ = 40 \times 10 = 400 \:rupees \\ \\ \\ {\pink{\boxed{\therefore \:Cost\:of \: 3\frac{1}{3}m \:of \:cloth = 400 \:rupees}}}$