The value of 40 coins of 10 p and 20 p is Rs. 5.50. The number of 20 p coins is Choose the correct choice from the following answers
A) 15	B) 25	C) 30	D) 35	E) 40
Let the number of 20 paise coins be x.   Then, number of 10 paise coins = (40 – x).   10(40 – x) + 20x = 550 or 10x = 150 or x = 15.   15NSWER:15
<result>A</result>
The value of 40 coins of 10 p and 20 p is Rs. 5.50. The number of 20 p coins is