Question

if packs with 12 pens in each pack cost Rs 168 what will be the cost of 23 pack with 15 pens in each​

Answer 1

Given:

Cost of a pack of 12 pens=Rs.168

To find:

The cost of 23 packs with 15 pens in each

Solution:

The cost of 23 packs with 15 pens in each is Rs.345.

We can find the cost by following the given steps-

We know that the cost of a pack with 15 pens can be calculated by determining the cost of 1 pen.

We are given that the cost of a pack with 12 pens=Rs.168

Let the cost of one pen be X.

So, the cost of one pen, X=Cost of a pack with 12 pens/12

X=168/12

X=14

So, the cost of 1 pen is Rs.14.

Now we have to calculate the cost of 23 packs with 15 pens in each.

So, the cost of 15 pens=15×cost of 1 pen

=15×14

=Rs.210

The cost of one pack with 15 pens=Rs.210

The cost of 23 such packs can be obtained by multiplying 23 with the cost of 1 pack with 15 pens.

The cost of 23 packs with 15 pens in each=23×cost of one pack with 15 pens

=23×15

=Rs.345

Therefore, the cost of 23 packs with 15 pens in each is Rs.345.