Question

5 shaving blades cost 6.25 find the cost of 12 blades

Answer 1

5 blades—>₹6.25
So 12 blades—>₹(12*6.25/5)=₹15 is the required answer

Answer 2

To find: cost of $12$ shaving blades .

Given : cost of $5$ shaving blades is $Rs$$6.25$

Solution:

• We are given that cost of $5$ shaving blades is $Rs$$6.25$
• Let us find cost of $1$ shaving blade by dividing cost of $5$ blades by number of blades .

• Cost of $5$ blades = $Rs6.25$

      hence, cost of  $1$ blade =  $\frac{1 \times 6.25}{5}$

                                            $= 1.25Rs$  

• Now, cost of $12$ blades = $12 \times 1.25 Rs$

                                              $= 15 Rs$

Hence , cost of  $12$ shaving blades is $15 Rs$.