A bag contains one rupee, 50 paisa and 10 paisa coins in the ratio of 3:2:1. How many 50 paisa coins are there, if the total number of money in the bag is Rs 820?	Pick
A) 400 coins	B) 40 coins	C) 100 coins	D) 4100 coins	E) 4200 coins
Let the number of 100p, 50p and 10p coins be 3x ,2x and x .   The ratio of the values of coins = 100 p: 50p :10 p = 10:5:1   Total amount = (10 x 3x ) + (5 x 2x) +( 1 x x) = 30x+10x+x=41x   The ratio of their values in rupees= 30x:10x:x   Given total amount is Rs 820 =&gt; 41x = 820 =&gt; x=Rs 20   Total value of 50p coins (in rupees) = 10 x 20 =Rs 200   Total 50 paisa coins are = 200 x 2 = 400 coins   400 coinsnswer:400 coins
<result>A</result>
A bag contains one rupee, 50 paisa and 10 paisa coins in the ratio of 3:2:1. How many 50 paisa coins are there, if the total number of money in the bag is Rs 820?