Question

one dozen pencil cost ₹ 84 and cost 9 ink pens is ₹27 . FIND THE RATIO OF THE COST OF ONE PENCIL TO THE COST OF ONE INK PEN.​

Answer 1

Answer:

7:3

Step-by-step explanation:

dozen = 12

12 pencils cost 84/-

1 pencil costs 84÷12=7

9 ink pens cost 27/-

1 ink pen costs 27÷7=3

ratio if 1 pencil to 1 pen

7:3

thank you. :)

Answer 2

In context of question asked,

We have to determine the ratio of cost of 1 pencil to the cost of 1 ink pen.

As per question,

it is given that,

Cost of one dozen pencil = Rs. 84

As we know that,

1 Dozen = 12 piece.

So, cost of 12 piece of pencil = Rs. 84

Hence, cost of a single pencil will be $=\frac{84}{12} = Rs.\:7$

As cost of 9 ink pens is Rs. 27

So, cost of a single ink pen will be $=\frac{27}{9} = Rs.\:3$

Hence, cost of a single ink pen will be Rs. 3

Hence, ratio between the cost of 1 pencil to the cost of 1 ink pen will be

$=\frac{7}{3} = 7:3$