Question

15 rulers cost £3
How much do 40 rulers cost?

Answer 1

Answer:

The cost of the 40 rulers is £8 .

Step-by-step explanation:

As given in the question

15 rulers cost £3

i.e

15 rulers = £3

Cost of the one ruler.

$1\ ruler = \frac{3}{15}$

1 ruler cost =  £ 0.2

Now find out the cost for 40 rulers .

Cost for 40 rulers = 40 × 0.2

                              = £8

Therefore the cost of the 40 rulers is £8 .