Question
Class 'P' has a total of 160 students. The ratio of
girls to boys in this class is 2:6. The average number of boys in classes 'P' and 'Q' is 180, and the average number of girls in these two classes is 110. What is the total number of students in class 'Q'?Solution
ATQ; Number of girls in class P = (2/8) × 160 = 40 Number of boys in class P = (6/8) × 160 = 120 Number of boys in class Q = 180 × 2 − 120 = 360 − 120 = 240 Number of girls in class Q = 110 × 2 − 40 = 220 − 40 = 180 Total number of students in class Q = 240 + 180 = 420
More Average Questions
Four of the following five are alike in a certain way based on a group, which among the following does not belong to that group?
How is M related to N?
How is I related to H?
How is the mother of J related to the daughter of H?
How is Q related to O?
How is Z related to M?
- 'A + B' means 'A is the father of B'. 'A - B' means 'A is the son of B'. 'A ÷ B' means 'A is the daughter of B'. 'A X B' means 'A is married to B'. In the...
Answer the questions based on the information given below.
Eight persons M, N, O, P, Q, R, S, and T belong to a family of three generations. Th...
How is P related to H?
How is S related to Q?
Relevant for Exams:
