Question

In a bag there are coins of 25p,10p,5p in the ratio 1:2:3 if there is rs-30 in all howmany 5p coins are there?plz help

Answer 1

Let the number of 25p coin be a

Number of 10p coin = 2a

Number of 5p coin = 3a

According to question,

Total money = Rs 30 = 3000p

=> a × 25 + 2a × 10 + 3a × 5 = 3000

=> 25a + 20a + 15a = 3000

=> 60a = 3000

=> a = 50

Number of 25p coin = 50

Number of 10p coin = 2× 50 = 100

Number of 5p coin = 3 × 50 = 150