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Immediate Payment Service (IMPS) is an instant real-time inter-bank electronic funds transfer system in India. IMPS offers an inter-bank electronic fund transfer service through mobile phones. Unlike NEFT and RTGS, the service is available 24/7 throughout the year including bank holidays.
The average age of three children is 20 years. If their ages are in the ratio 5:6:9. Find the age of the youngest child.
Average age of 3 children born at intervals of 2 years is 8. How old is the eldest child?