Q. In a bag, there are coins of 25 p, 10 p, and 5 p in the ratio 1:2:3. If there are Rs, 30 in all, how many 5 p coins are there?
The correct option is C 150
Let the number of coins be 1x, 2x, 3x
.25x+.10×2x+.05×3x=30x=30.6=50Number of 5 p coin =50×3=150