Question

If you buy rice for 10kg and it costs Rs.90 then what will be the kg if the cost Rs.40? Please answer

Answer 1

Answer:

1kg→Rs40

1000gm→40

1gm→

1000

40

Now for 1kg500gm→1500gm

for 1500gm=

1000

40

×1500

=60Rs

Answer 2

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Step-by-step explanation:

$let \: the \: kg \: be \: x ,\: if \: the \: cost \: is \: rs.40 \\x \: kg = rs. \: 40 \\ 10kg = rs.90 \\ therefore: \\ \frac{x}{10} = \frac{40}{90} \\ 90 \times x = 40 \times 10 \\ 90x = 400 \\ x = \frac{400}{90} \\ x = 4.44kg \\ therefore \: 4.4kg \: costs \: rs.40$

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