Question

Honney bought 2 lemons for Php20.50. How much will she pay if she will buy 7 lemons?

Answer 1

Price per lemon= 20.50÷2= 10.25
Price for 7 lemons= 7 * 10.25 =71.75

Answer 2

Cost of 2 lemons = $ 20.50

We have to find the cost of 7 lemons. We will use unitary method to solve this problem. The unitary method is a technique which is used for solving a problem by finding the value of a single unit, i.e., 1, (by dividing) and then finding the necessary value by multiplying the single unit value.

Since, Cost of 2 lemons = $20.50

Cost of 1 lemon = $
`(20.50)/(2)`

Cost of 1 lemon = $ 10.25

Cost of 7 lemons = $
`7 * 10.25`

So, Cost of 7 lemons = $ 71.75

Therefore, she will pay $71.75 for 7 lemons.