Question

In a bag, there are coins of 25 p, 10 p and 5 p in the ratio of 1 : 2 : 3. If there is Rs. 30 in all, how many 5 p coins are there?

Answer 1

let the ratio be 1x,2x,3x
there are total of 30Rs
1x+2x+3x=30
6x=30
x=30\6
x=5
25 p coins are 1x=1*5=5
10p coins are 2x=2*5=10
5p coins are 3x=3*5=15

Answer 2

Answer:

150

Step-by-step explanation:

Let the number of 25 p, 10 p and 5 p coins be x, 2x, 3x respectively

Then, sum of their values

=> Rs. ( 25*x/100 + 10*2x/100 + 5*3x/100) = 30

=> Rs. (25x / 100 + 20x / 100 + 15x / 100)  30

=> Rs. (60x/100) = 30

=> x = 30 * 100 / 60 = 100 / 20 = 50

=> x = 50

Hence,thenumberof5pcoins

=> 3x

=> (3×50)

=> 150