A positive number is 5 times another number. If 21 is added to both the numbers, then one of the new numbers becomes twice the other new number. What are the numbers?
Let the numbers be x and 5x
Thus, one number is 7 and the other number is 35.
Hasan buys two kinds of cloth materials for school uniforms, shirt material that costs him Rs 50 per metre and trouser material that costs him Rs 90 per metre.
For every 2 meters of the trouser material he buys 3 metres of the shirt material.
He sells the materials at 12% and 10% profit respectively. His total sale is Rs 36,660. How much trouser material did he buy?