Question

If 30 oranges cost Rs. 120. What is the cost 50 oranges?

Answer 1

200

Step-by-step explanation:

1:orange cost is 40

Answer 2

The cost of 50 oranges is Rs. 500

Given:

30 oranges cost Rs. 120

To find:

What is the cost of 50 oranges?    

Solution:

Formula used:

Cost of one orange = [ cost of n oranges]/n

Cost of n Oranges = n × Cost of one orange

Here use the unitary method to find the cost of 50 oranges.

For this find the cost of 1 orange cost by using the cost of 30 oranges

Using the given formula,

Cost of one orange = [ Cost of 30 oranges ]/30

= 120/30 = Rs. 4

Hence,

The cost of 50 oranges = 50 × Rs. 4 = Rs. 500

Therefore,

The cost of 50 oranges is Rs. 500

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