DIRECTIONS for the question:Solve the following question and mark the best possible option.
Anu collected certain number of coins of denominations Rs 1, Rs 2 and Rs 5. She has certain number of Rs. 2 coins, 4 times as many Rs 5 coins as Rs 1 coins and 15 more Rs 2 coins than Rs 1 coins. If the total value is Rs. 490, how many Rs 2 coins are there?
A)
11
B)
20
C)
35
D)
60
E)
70
C
Let the Rs 1 coins are ‘x’. So the number of Rs 5 coins is 4x and x + 15 coins of Rs 2. Now
x + 20x + 2 × (x + 15) = 490
⇒ 23x + 30 = 490
⇒ 23x = 460 ⇒ x = 20
So the number of Rs 2 coins are 35.
