Question

John sold the house to Peter at a gain of 10% Peter sold it to Anil at a gain of 20% if Anil paid rupees 2640 for it then John had purchased it for​

Answer 1

Step-by-step explanation:

John to peter 10% = 1/10

10 --------> 11

Peter to Anil 20% = 1/5

5 -----------> 6 means 2640 (1 ~ 440)

so 5 means = 440*5 = 2200

This is equivalent to 11

So, 1 means 200

So, John purchased for 10*200 = 2000

Answer 2

Answer: John has purchased it for Rs 2000.

Step-by-step explanation:

Anil's CP = Rs 2640

Let Peter's SP = Rs x

Therefore, (100+20)x/100 = 2640

x= 2640*100/120

 = 2200

Now let John's SP = Rs y

therefore, (100+10)y/100 =2200

y = 2200*100/110

  = 2000