Question

A,man bought some pens at rs 5 each and some pencils at rs.3 and paid a toral of rs 100. how many pens did he buy if the torak no. Of pens and pencils is 26

Answer 1

Answer:

Step-by-step explanation:

Let, the number of pens be x and pencils be y.

Total number of pens and pencils are 26.

So, equation would be like this;

x+y = 26................(1)

Pens cost Rs. 5 each and pencils cost Rs. 3 each.

Total amount paid is Rs. 100.

So, equation would be like this;

5x+3y = 100...........(2)

Multiplying equation (1) by 3 and subtracting from equation (2), we get;

5x+3y = 100

3x+3y = 78

-. -. -

=> 2x = 22

=> x = 22/2

=> x = 11

Total number of pens are 11.