Question
The average weight of 14 students of a class is 20 kg.
If a student leaves the class, the average weight of the class drops by 2 kg. Find the weight of the student (in kg) who left the class.Solution
Average weight of 14 students =20kg. Total weight =20×14=280kg. After a student leaves a class then average =20-2 =18kg Total weight of 13 student =13×18=234 kg. Weight of a student who left the class =280-234=46 kg.
E is living on which of the following floors?
- Five persons, S, T, U, V and W live on different floors of a five floor building such that bottommost floor is numbered as 1 and the topmost floor is numbe...
Which of the following box is wrapped with Pink paper?
Which of the following statements is/ are true regarding H?
G likes which of the following Shoes?
Who lives immediately above Q?
Who among the following lives with B in the same floor?
How many persons are working below the floor in which A is working?
What is the position of Box D with respect to Box G?
Seven persons, P, Q, R, S, T, U and V, live in a seven-storey building, but not necessarily in the same order. Bottommost floor is numbered as 1 and th...
Relevant for Exams:
