Question

answer this question. Thanks..Please answer properly...

Answer 1

Answer:

If 7 pencils cost rs 6 more than 5 pencils, then 2 pencils cost rs 6.

So 1 pencil costs=6/2

So 10 pencils cost= 6/2×10

                              = rs 30

Therefore, 10 pencils will cost rs 30

Answer 2

Answer:

Let x be the cost of the pencil.

Then,

Cost of 7 pencils= 7x

RS.6 more than 5 pencils=RS.6+5x

According to the question:

=> 7x = RS.6 + 5x

=> 7x - 5x = RS.6

=> 2x = RS.6

=> x = RS.6/2

=>x = RS.3

Therefore,cost of ten pencils = 10x = RS.3*10 = RS.30!!

Hope it helps..