Question

Quiz: 11/30
7 packs with 12 pens in each pack cost Rs. 168, what will be the cost of 13 packs with 15 pens in each pack?​

Answer 1

Answer:

7×12pens=168

1pen=2

now 13×15pens=13×15×2

=Rs390

Answer 2

Answer:

The cost of 13packs with 15 pens  each in a pack = Rs. 390

Step-by-step explanation:

Given,

The cost of 7 packs with 12 pens = Rs.168

To find,

The cost of 13 packs with 15 pens

Solution:

Total number pens in 7 packs with 12 pens = 7×12 = 84pens

Since the cost of 7 packs with 12 pens = Rs.168, we have

the cost of 84pens = Rs. 168

Cost of 1 pen = $\frac{168}{84}$ = = Rs. 2

The total number of pens in 13 packs with 15 pens = 13×15 = 195 pens

Since the cost of one pen = Rs.2, the cost of  195pens  = Rs. 390

Hence, the  cost of 13packs with 15 pens  each in a pack = Rs. 390

#SPJ2