Q: The average age of 30 students of a class is 15 years. A 20-year-ol – McqOptions

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1.	Q: The average age of 30 students of a class is 15 years. A 20-year-old student left the class and replaced by two new students, whose age difference is 5 years. If the average age of all students is 15 years, then what will be ratio of young student to elder students.
A.	04:05:00
B.	03:05:00
C.	03:04:00
D.	04:03:00
Answer» D. 04:03:00

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