Question

if 15 pencil cost ₹90 then the cost of such pencil is ₹ ​

Answer 1

Answer:

132  

Step-by-step explanation:  

15 pens  is 90 [the cost] so as we have to find 22 pens we have to first find of one pen .  

1 pen = x  

90/15 = [ simplest form ] = 6/1  

x=6  

22 pens= 22 multiply to 6  

           = 132

hence cost of 22 pens are Rs 132

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Answer 2

Answer:

Given total cost of 5 pens and 10 pencil = Rs 30

5 pens + 10 pencils = 30

pens + 2 pencils = 1

also given pen cost 3 more than a pencil

i.e, pen = 3 + pencil.

pen - pencil = 3

pens + 2 pencils = 6

_______________

-3 pencils = -3

pencils = 1

pen - 1 = 3

pen = 4

cost of pencils = 1    cost of pen = 4