#7711.27 pens are divided among Amy, Ursula, and Gia such that the ratio of pens with Amy and Ursula is 1:2 and that with Ursula and Gia is 4:3. How many pens did Amy get?

]]>#7710. If

then find the value of ]]>Good attempt, math9maniac!

#7709. The average of five positive numbers is 213. The average of the first two numbers is 233.5 and the average of the last two numbers is 271. What is the third number?

]]>#7708. 19 persons went to a hotel for a combined dinner party. 13 of them spent $79 each on their dinner and the rest spent $4 more than the average expenditure of all the 19. What is the total money spent by them (approximately)?

]]>#7707. There were 24 students in a class. One of them, who was 18 years old, left the class and his place was taken by a newcomer. If the average of the class was thereby lowered by 1 month, find the age of the newcomer.

]]>#7706. The average age of a husband and wife, who were born 7 years ago, was 25 years at the time of their marriage. Now, the average age of family, including husband, wife, and a child (born during the interval) is 22 years. What is the present age of the child?

]]>#7705. The average of 6 numbers is 30. If the average of the first four is 25 and that of the last three is 35, find the fourth number.

]]>#7704. The average weight of 8 persons increases by 2.5 kilograms when a new person comes in place of one of them weighing 65 kilograms. What would be the weight of the new person?

]]>#7703. Three years ago, the average age of a family of 5 members was 17 years. A baby was born, the average age of the family is the same as what was three years ago. What is the age of the baby?

]]>#7702. The average marks of 13 papers is 40. The average marks of first seven papers is 42 and that of the last seven papers is 35. What are the marks of the seventh paper?

]]>#7701. The average score of three boys in Mathematics is 30. When the score of a fourth boy is added to the score of the three boys, the average is lowered to 25. What is the score of the fourth boy?

]]>#7700. The average of x, y, and z is 30, and the average of x and y is 20. What is the value of z?

]]>#7699. Find the average of the two-digit numbers, which remain the same when the digits interchange their positions.

]]>#7698. The average weight of M, N, and O is equal to 65 kilograms. The average weight of M and N is equal to 69.5 kilograms. The average weight of N and O is 66.5 kilograms. What is the weight of N?

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