A store sells an item for Tk. 50 each, or 3 items for Tk. If 202 items were sold and revenue amounted to Tk. 00, How many of these items were sold one at a time?

A store sells an item for Tk. 50 each, or 3 items for Tk. If 202 items were sold and revenue amounted to Tk. 00, How many of these items were sold one at a time?

A 150

B 120

C 130

D 40

Solution

Correct Answer: Option C

Let, x+3y=202-------(i)

and, 1.5x+3.5y=279------(ii)

equation(i)×1.5 then,

We get, y=24

So, x+3(24)=202

=> x=130

Therefore, required items were sold one at a time =130