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Cost of 5 kg of wheat is Rs. 91.50.
(a) What will be the cost of 8 kg of wheat?
(b) What quantity of wheat can be purchased in Rs. 183?
Given:
The cost of $5\ kg$ of wheat is $Rs.\ 91.50$.
To do:
We have to find:
(a) The cost of $8\ kg$ of wheat.
(b) The quantity of wheat that can be purchased for $Rs.\ 183$.
Solution:
(a) The cost of $5\ kg$ wheat $=Rs.\ 91.50$
We know that,
The cost of $1\ kg$ can be obtained by dividing the given amount by the given quantity.
The cost of $1\ kg$ wheat $=\frac{91.50}{5}$
$=Rs.\ 18.30$
Therefore,
The cost of $8\ kg$ wheat $=Rs.\ 18.30\times8$
$= Rs.\ 146.40$
The cost of $8\ kg$ wheat is $Rs.\ 146.40$.
(b) The cost of $5\ kg$ wheat $=Rs.\ 91.50$
We know that,
The quantity of wheat for $Rs.\ 1$ can be obtained by dividing a given quantity by the given amount.
The quantity of wheat for $Rs.\ 1 = \frac{5}{91.50}\ kg$
Therefore,
The quantity of wheat for $Rs.\ 183 = \frac{5}{91.50}\times183$
$= 10\ kg$
The quantity of wheat for $Rs.\ 183$ is $10\ kg$.