Question

six pencils cost £1.92.Three pencils and one rubber cost £1.21.What is the cost of one rubber​

Answer 1

Cost of 6 pencil= £ 1.92
Cost of each pencil = 1.92/6
=0.32
Cost of 3 pencils and one rubber is £1.21
3* cost of one pencil + cost of one rubber = 1.21
3*0.32 + cost of rubber = 1.21
0.96+ cost of rubber = 1.21
Cost of rubber = 1.21 - 0.96
= 0.25

Answer 2

Given:

The cost of six pencils = € $1.92$

The cost of three pencils and one rubber = € $1.21$

To find:

The cost of one rubber

Step-by-step explanation:

The cost of six pencils = € $1.92$

The cost of one pencil = $1.92\;\div\;6\;=\;0.32$

The cost of $3$ pencils = $3\;\times\;0.32$

Therefore, the cost of $3$ pencils = € $0.96$

Let us find the cost of the one rubber by subtracting the cost of $3$ pencils from the cost of

The cost of one rubber = € $1.21$ - € $0.96$ = € $0.25$

Answer:

Therefore, the cost of one rubber is € $0.25$