Question

Mangoes are being sold are Rs 38 3/4 per kg what is the coast of 3 1/5 kg of mangoes

Answer 1

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Given:

1 kg mangoes = Rs 38×3/4

To find:

Cost of 3×1/5kg mangoes = ?

Solution:

$\\ 1 \: kg \: mangoes = 38 \dfrac{3}{4} \\ \\ = \dfrac{38 \times 4 + 3}{4} \\ \\ = \dfrac{155}{4} \\ \\ = Rs 38.75$

$\\ 3 \dfrac{1}{5} kg \: = \dfrac{5 \times 3 + 1}{5} \\ \\ = \dfrac{15 + 1}{5} \\ \\ = \dfrac{16}{5} \\ \\ = 3.2 \: kg$

$\\ 1 \: kg \: mangoes \: cost \: Rs 38.75 \\ \\ 3.2 \: kg \: mangoes \: cost \: \\ \\ Rs \dfrac{3.2 \times 38.75}{1} = Rs \:\: 124$

Required answer:

Thus, 3×1/5 kg mangoes cost Rs 124