Question

A man sold two tables for ₹800 each. On one he gain 20% and on the other he loses 20%.Find the gain or loss per cent in the whole transaction

Answer 1

Answer:

Step-by-step explanation:

1st case

C.P = Rs.800

Gain = 20 percent

So, SP = 20/100 * 800 + 800

= 160+800

= 960

2nd case ,

C.P = 800

Loss = 20 percent

S.P = 800 - 20/100 * 800

= 800 - 160

= 640

Now,

Total C.P = 800 +800 = 1600

Total S.P = 960 +640 = 1600

Since C.P = S.P

Thefore no loss no gain

Answer 2

Answer:

Step-by-step explanation:

The total C.P of the watch= RS. 800

Now,

1st case

profit percent = 20%

S.P= Profit%*C.P+C.P

S.P= RS. 960

2nd case

Loss percent= 20%

S.P= C.P-Loss % *C.P

S.P= RS. 640

So, The total S.P= 960+640

                            = 1600

Profit=S.P-C.P

         = 1600-800

          = 800

Profit percent = profit/ c.p*100

                       = 100 %