Question

orange cost ₹54 for three dozen in supermarket. what is the cost of eight orange solve by direct and inverse variation

Answer 1

Cost(in Rs.)           No. of oranges

    54                             36
     x                               8
(Directly proportionate to each other)
(Cross multiply)
x*36=54*8
x     =54*8/36
x     =12
Ans.=The cost of 8 oranges is Rs. 12.

Answer 2

1 dozen is equal to 12
the cost of 36 oranges is equal to 54
then the cost of 1orange is equal to 54/36
the cost of 8oranges is equal to 54/36*8
then by solving it we get the cost of 8 oranges is 12 in supermarket.