Question

by selling 130 cassettes,a man gains an amount equal to the selling price of 5 cassettes find gain per cent. plz answer plz

Answer 1

let s.p. of 1 cassettes be rs1                                  (rs=ruppes)
s.p. of 130 cassettes = 1*130                                 (*=multiply)
                                  = rs 130                                (/=divide)
s.p. of 5 cassettes = gain

gain=1*5
      =rs 5

c.p. of total number of cassettes=s.p. - gain
                                                   = 130 - 5
                                                   = rs 125
gain%=gain/c.p.*100
          =5/125*100
          =4% ans

Answer 2

Answer:

Step-by-step explanation:

let the cost price of each cassette be rs.10

cost price of 130 casts = 130*10=1300

by selling , he gained sp of 5 cassettes

therefore , cost price of 130 cassettes = selling price of 125 cassettes

sp of 5 cassettes = 1300/125 * 5

= 52

he gained Rs. 52 on selling 130 cassettes

gain℅= gain/total cp * 100

= 52/1300*100= 4℅

Hope it will help you..