Question

A doll is sold for Rs. 220.00. What was the cost of doll if rate of profit was 10% of the cost? (A) Rs. 198.00 (C) Rs. 210.00 Find the arithmetic mean between 4 and 6. (B) Rs. 200.00 (D) Rs. 240.00​

Answer 1

Answer:

RS 200

Step-by-step explanation:

cp of doll be x

selling  price = RS220

profit %= 10%

now, p%=sp - cp / cp* 100%

10% = 220-x/x*100%

10x=22000-100x

10x+100x= 22000

110x=22000

x=22000/110

x= RS 200