Question

in a bag there are coins of 10p and 5p in the ratio of 1:2 if there is rs 30 in all,how many 10p coins are there​

Answer 1

Answer:

No. of 10 p coins = 150  and No. of 5 p coins = 300

Step-by-step explanation:

In a bag, there are coins of 10 p and 5 p in the ratio of 1 : 2

So, Let no. of 10 p coins be x  and no. of 5 p coins be 2x  

Now, Total money in the bag = Rs. 30

⇒ 10x/100 + ( 5 × 2x)/100 = 30

⇒ 20x = 30  × 100

⇒ x = (30/20) × 100

⇒ x = 1.5 × 100

      = 150

Now, no. of 10 p coins = x = 150

no. of 5 p coins = 2x = 300

Step-by-step explanation:

Answer 2

Answer:

there are ten 10p coins and twenty 5p coins

Step-by-step explanation:

let the no of 10p coins be x and 5p coins be 2x

According to question ,

x + 2x = 30

or , 3x = 30

or, , x = 30/3

or , x = 10

So , 10p coins are 10 and 5p coins are 2 × 10 , i.e. , 10p coins are 10 and 5p coins are 20 in amount