Question

gopi sold a watch to ibrahim at 12 percent gain and ibrahim sold it to jhon at a loss of 5 percent if jhon paid 1330 then find how much did gopi sold it

Answer 1

Step-by-step explanation:

let c.p of Gopi be x

gain % = 12%

s.p of Gopi = ?

s.p = c.p×(100+g%)÷100)

s.p = x × 100+12÷100 =x × 12÷100

s.p of Gopi = 112x÷100

s.p of Gopi = c p of lbrahim

c.p of Ibrahim= 112x÷100

loss% = 5%

s.p of lbrahim = ?

s.p = c.p x 100 - loss%÷100

= 112x ÷ 100 × 100-5÷100

s.p of lbrahim 112x × 95 ÷ 100×100

John paid = 1330 rs

s.p of lbrahim = c.p of a John

112x × 95 ÷100 × 100 = 1330

x = 1330 × 100 × 100 ÷ 112 × 95

there fore x = 1250

c.p of Gopi = 1250

s.p of a Gopi

= 112x ÷ 100 = 112×1250 ÷ 100

= 1400