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The average weight of a group of five persons, A, B, C, D, and E is 70 kg. If another person K joins the group then the average weight of the group is d...
In a classroom, the combined average age of all students and their teacher is 17 years. The average age of the boys in the class is 13 years. If the tea...
The average age of 4 children in a family is 30% of the average age of the mother and the youngest child. The total age of the father and the eldest chi...
A man takes 3.5 hours to reach a friend's house, which is 50 km away from his residence. He returns home traveling at 20 km/h. Ca...
The average cost of 3 chairs is Rs. 10000. The average cost decrease by 22% when one more chair is included. What is the cost price of the 4th
The average weight of 7 men decreases by 3 kg when one of them weighing 150 kg is replaced by another person. Find the weight of the new person
The average expenditure of a man for the first 4 month is Rs.4000 and for the next 8 months is Rs.6000. If he saves 11000 in that year then find his ave...
In a factory, the average salary of all employees is Rs. 5600 and the average salary of 24 supervisor is 7200. If the average salary of labours is 4800,...
The average weight of 9 students in a seminar is 42 kg. If the weight of 4 facilitators is also included, then the new average weight of each person (fa...
The average weight of 12 children rises by 2.15 kg after one of the children, who weighs 56 kg, is replaced by a new child. What is the weight of the ne...
