Question

did Arun purchase it?
34. Arun sold a watch to Sonu at a gain of 10% and Sonu solo lo
Anita at a gain of 4%. If Anita pays Rs 1430 for it, for how mua​

Answer 1

Answer:

Let the price Arun purchased the watch for be x Rs.

Arun sold it at a gain of 10 % to Sonu, so he increased the price by 10 %.

Sonu's purchase = x + 10/100 * x

                            =  x + x/10 Rs

                            = 10 x + x /10

                            = 11x/10

Sonu sold it at a gain of 4 % to Anita, so he increases the price by 4 %.

Anita's purchase = 11x/10 + 4/100*11x/10

                            = 11x/10 + 44x/1000

                            = 1100x + 44x / 1000

                            = 1144 x / 1000 Rs.

It is also given that Anita purchased the watch for 1430 Rs.

Therefore,

1430 = 1144 x/1000

1144 x = 1430*1000

x = 1430 * 1000 / 1144

  = 715 * 1000 / 572

  = 715 / 572 * 1000

  = 1.25 * 1000

  = 1250

x = price at which Arun bought the watch at

Therefore, Arun bought the watch at 1250 Rs.

HOPE IT HELPS ;)