Question

17. Sumitra has 34 in 50-paise and 25-paise coins. If the number of 25-paise coins is twice
the number of 50-paise coins, how many coins of each kind does she have?
18. Raju is 19 years younger than his cousin. After 5 years, their ages will be in the ratio 2:3.
Find their present ages.​

Answer 1

Answer:

Step-by-step explanation:

17.Let the 50 paise coins =x

Let the 25 paise coins = 2x

According to the question:-

50(x)+25(2x) = 3400

50x+50x = 3400

100x = 3400

x = 34

50 paise coins = 34

25 paise coins =2x = 68

18. Raju's Age = (x-19)years

Let the age of his cousin = x years

According to the question:-

x-19+5/x+5 =2/3

x-14/x+5 = 2/3

3(x-14) = 2(x+5)

3x -42 = 2x+10

x = 52

His cousin's age = 52 years

Raju's age = x-19 = 52-19 = 33 years