Question

if the cost of 17 toys is rs. 272; what would the cost of a dozan of toys

Answer 1

The sum of 3rd and 15th elements of an arithmetic progression is equal to the sum of 6th, 11th and 13th elements of the same progression. 

Answer 2

Heya!

Here is yr answer.....


Given,

Cost of 17 toys = rs. 272

Cost of 12 toys(dozen) = ??

Now,

Cost of 1 toy = 272/17 = 16

Cost of 12 toys = 16 × 12 = 192

Therefore, cost of dozen toys = rs. 192


Hope it helps...