Question

If 24 ballpens cost RS 56,find the cost of 18such pens

Answer 1

Answer:

24 pens cost= 56 rupees

1 pen cost = 56/24

18 pens cost = 56/24×18=14

Answer 2

Answer:

Hence the cost of 18 such pens is Rs. 42

Step-by-step explanation:

As per the data given in the above question,

The cost price of 24 ballpens is Rs. 56

We have to find the cost of 18 such pens.

Here we have to know the cost of one pen first,

Cost of one pen is equal to cost of 24 pens upon total number of pen that is 24.

So, the cost of one pen is,

$= \frac{56}{24} \\ = \frac{28}{12} \\ = \frac{14}{6} \\ = \frac{7}{3}$

The cost of one pen is

$\frac{7}{3}$

The cost of 18 pen will be as follow,

$= \frac{7}{3} \times 18 \\ = 7 \times 6 \\ = 42$

Hence the cost of 18 such pens is Rs. 42