Question

If 7 kg onions cost 140 rupees , how much must we pay for 12 kg onions.

Answer 1

Answer:

Rs.240

Step-by-step explanation:

Given :7 kg onions cost 140 rupees

To Find: 7 kg onions cost 140 rupees

Solution:

Cost of 7 kg onions = Rs.140

Cost of 1 kg onion = 140/7

                               =20

Cost of 12 kg onion = 20*12 =Rs.240

Hence the cost of 12 kg onions is Rs.240

Answer 2

Answer:

$\huge \red{ \: Hi \: dear,}$

$\red{Your \: question - }$

$If \: 7 \: kg \: onions \: cost \: 140 \: \\ rupees , \: how \: much \: must \: we \: pay \: \\ for \: 12 kg \: onions.$

$\green{Solution-}$

$Let \: the \: cost \: of \: 12kg \: of \: onions \\ \: be \: x$

$\therefore \: \frac{7}{140} = \frac{12}{x} \\ 7x = 140 \times 12 \\ x = \frac{140 \times 12}{7} \\ x = 20 \times 12 \\ x = 240 \\ \therefore \: The \: cost \: of \: 12kg \: onions \\ \: is \: ₹240$