Question

By selling a watch for ₹ 990, a shopkeeper incurs a loss of 10%. Find the cost of the watch for shopkeeper.​

Answer 1

Answer:

891 is the correct answer

Answer 2

Step-by-step explanation:

LONG METHOD

(C.p - S.p)/C.p = 10/100 = 1/10

(C.p - 990)/C.p = 1/10

10C.p - 990×10 = C.p

9C.p = 990×10

C.p = 1100

SHORT METHOD

C.p. :. S.p

10. : 9

9=> 990

10=>1100