Question

A shopkeeper buys 20 quintals of wheat. He sells
6 quintals at 15% profit, 8 quintals at 20% profit
and disposes of the rest for 25% profit. His total
gain was 2000. At what price per quintal did he
buy the wheat?​

Answer 1

Answer:

285.71

Step-by-step explanation:

(6 X 15/100 X a) + a, where the price of one quintal of wheat is a

(8 X 20/100 X a) + a

(6 X 25/100 X a) + a

⇒(6 X 15/100 X a) + a + (8 X 20/100 X a) + a + (6 X 25/100 X a) + a = 2000

3a +( 90a+ 160a + 150a)/100 = 2000

300a+90a+160a+150a = 2,00,000

700a = 2,00,000

a=285.71

Answer 2

Answer:

Step-by-step explanation:

A shopkeeper sold two table lamps at 495 each. On one he gains 10% and on

the other he loses 10%. Find his total gain or loss per cent