The price that Akbar should marks on a pair of shoes which costs him 1,200 to gain 12% after allowing a discount of 16% (in rupees) is-
(A) 1,344
(B) 1,433
(C) 1,600
(D) 1,500
On mixing two classes A and B of students having average marks 25 and 40 respectively, the over all average obtained is 30. Find the ratio of the students in the classes A and B.
(A) 2:1
(B) 5:8
(C) 5:6
(D) 3:4
4 boys and 3 girls spent Rs. 120 on an average, of which boys spent Rs. 150 on the average. Then the average amount spent by the girls is.
(A) ₹ 80
(B) ₹ 60
(C) ₹ 90
(D) ₹ 100
There are two groups A and B of a class, consisting of 42 and 28 students respectively. If the average weight of group A is 25 kg and that of group B is 40 kg, find the average weight of the whole class.
(A) 69 kg
(B) 31 kg
(C) 70 kg
(D) 30 kg
The mean weight of 34 students of a school is 42 kg. If the weight of the teacher be included, the mean rises by 400 grams. Find the weight of the teacher (in kg.)
(A) 55 kg
(B) 57 kg
(C) 66 kg
(D) 56 kg
The average monthly salary of all the employees in an industry is Rs. 12,000. The average salary of male employees is Rs. 15,000 and that of female employees is Rs. 8,000. What is the ratio of male employees to female employees?
(A) 5:2
(B) 3:4
(C) 4:3
(D) 2:5
Average weight of 25 students of a class is 50 kg. If the weight of the class teacher is included, the average is increased by 1 kg. The weight of the teacher is
(A) 76 kg
(B) 77 kg
(C) 74 kg
(D) 75 kg
The average age of a husband and his wife was 27 years when the child was born, the average age of the husband, the wife and new-born child is 21 years now. The present age of the child is:
(A) 4 years
(B) 3 years
(C) 2 years
(D) 1 year
In a family, the average age of a father and a mother is 35 years. The average age of the father, mother and their only son is 27 years. What is the age of the son?
(A) 12 years
(B) 11 years
(C) 10.5 years
(D) 10 years
The average age of a husband and wife, who were married 4 years ago, was 25 years at the time of their marriage. The average age of the family consisting of husband, wife and a child, born during the interval is 20 years today. The age of the child is:
(A) 1 years
(B) 2 years
(C) 2.5 years
(D) 3 years
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