Problems on ages Quiz 2

The average age of 30 students of a class is 12 years. The average age of a group of 5 of the students is 10 years and that of another group of 5 of them is 14 years. Hat is the average age of th remaining students?





10 years ago, sitas mother was 4 times older than her daughter. After 10 years the mother will be twice lder than the daughter. What is the present age of sita?





The average age of 6 women is 32 years which is increased by 1 year when a fresh woman joins the group. Then what is theage of the fresh woman?





The average age of 45 persons is decreased by 1/9 year when one of them whose age is 60 years replaced bya new comer. What is the age of new aomer?





The average age of 26 labours is 30 years. It is decreased by 1/5 years, when a labour went jome. Then the value of age of that labour is?





The average age of 10 girls in a hostel is 19 years. But one girl left the hostel and average age is increased by ½ year. Then how many year she is old?





One year ago the ratio between Samir’s and shok’s age was 4:3. one year hence theratio of their ages will be 5:4. what is the sum of their presen ages in years?





The average age of 24 boys and the teacher is 15 years. When the teacher age is excluded the average decreases by 1. what is the age of the teacher?





The sum of the age sof a mother and her daughter is 50 years. Also 5 years ago, the mother age was 7 times the age of the daughter. What are the persent ages of the mother and the daughter





Ten years agoA was half of B in age. If the ratio of their present ages is 3:4 what will be the total of their present age?







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