Question:A man buys an article for tk 27.50 and sells it for tk 28.60. find his gain percent. 

4%

Question:If a ratio is purchased for tk 27.50 and sells it for tk 28.60. Find his gain percent. 

C.P = Tk 450

 S.P = Tk 465.50

 Loss =Tk`(490-465.50)` 

 = Tk 24.50

 :. Loss % = `((24.50)/490xx 100)` %

  = 5%

Question:By selling a book for tk 115.20, a man loses 10%. At what price should he sell it to gain 5%? 

Let the new S.P be Tk x

 (100-Loss%) : (1st S.P) = (100 + gain%): (2nd S.P)

 or, `(100-10)/115.20` = `(100+5)/x`

 or, x = `(105 xx 115.20/90)` = 134.40 

 `:.` New S.P = Tk 134.40

Question:A trader lost 20% by selling  a watch for tk 1024. What percent shall he gain or loss by selling it for tk 1472? 

Let the new gain be  x%

Then, 80 : 1024 = (100 + x) : 1472

or, `80/1024` = `(100+x)/1472`

or, 100 + x = `(80 xx 1472)/1024` = 115

So, x = 15%

Question:Ashok purchased a radio set and sold it to Shayam at a profit of 25 % and shayam sold it to Mohan at a loss of 10 % and Mohan paid tk 675 for it. For how much did Ashok purchased it? 

Suppose Ashok purchased it for tk x

 Then, 90 % of x = 675

 :.`90/100 xx 125/100 xx x` = 675

 or, `(675 xx 100/125 xx 100/90)` = 600 tk

Question:A man sold two houses for tk 675958 each. On one he gains 16 % while on the other he loses 16 %. How much does he gain or loss in the whole transaction? 

2.56 %

Question:The orginal price of a T.V set is Tk 9000 the price is discounted by 20 % then raised by 10 % what is its new price? 

Tk 7920

Question:The C.P of 12 articles is equal to S.P of S.P of 9 articles. Find the gain percent : 

` 33 1/3` %

Question:Hari purchased 25 kg of wheat at Tk 4 per kg and 35 kg of wheat at tk 4.50 per kg. He sold the mixture at taka 4.25 per kg. Find his gain or loss. 

Loss Tk 2.50

Question:a grocer purchased 80 kg of rice at tk 13.50 per kg and mixed with 112 kg rice at tk 16 per kg. At what rate per kg should he sell the mixture to gain 16%? 

Tk 17.40 per kg