Question

Cost price of 4 calculators and 2 pencil is 6200. What is the cost of ten calculators and five pencils.

Answer 1

4c + 2p = 6200
2(2c+p) =6200
2c+p = 3100
multiple both side by 5
10c+ 5p =5*3100
10c+5p= 15500

Answer 2

Given :

Cost price of 4 calculators and 2 pencil is 6200.

To Find:

What is the cost of ten calculators and five pencils.

Solution:

Let the cost of 1 calculator be and cost of 1 pencil be y

So, Cost of 4 calculators = 4x

Cost of 2 pencils = 2y

We are given that Cost price of 4 calculators and 2 pencil is 6200.

So, 4x+2y=6200

Take 2 as common

So, 2x+y=3100

Multiply both side by 5

10x+5y=15500

So, Cost of ten calculators and five pencils = Rs.15500

Hence The cost of ten calculators and five pencils is Rs.15500