Question

if one dozen note books cost rs 42 find the the cost of 5 notebooks​

Answer 1

Answer:

₹17.5

Step-by-step explanation:

Given,

cost of 12 note books=42( ∵1 dozen =12)

cost of 5 note books =5x

{we need to find x first }

x= $\frac{42}{12}$=$\frac{21}{6} =$3.5

5x= 5 ×3.5

   = 17.5

∴Cost of 5 books is ₹17.5

Answer 2

Answer:

The cost of 5 notebooks is 17.5 rupees..

Step-by-step explanation:

First we need to take out the cost of 1 notebook..

which will be 42/12=3.5

then we will multiply 3.5 by 5..which will be 17.5..