Question

direct prospering and inverse proportion 7 kg cost 140 rupees, how much must we pay for 12 kg onions.​

Answer 1

Answer:

The number of onions and their cost vary in direct proportion. Hence, the cost of 12 kg onions is 240 rupees

Answer 2

Answer:

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

$\red{Your \: question - }$

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

$\green{Solution-}$

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

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