Question
In a class there were 10 students. 4 students left the
class and 6 new students joined the class thus the average age of the class got decreased by 1.5 years and the total age of all the students in the class got increased by 9 years then find the new average age of the class?Solution
The correct answer is A
More Previous year papers Questions
- Find the wrong number, in the given number series.
320, 160, 80, 50, 20, 10 Find the wrong number in given number series.
2116, 2146, 2190, 2218, 2260, 2306
12, 14, 18, 26, 38, 64
Find the wrong number in the given number series.
263, 133, 201, 505, 1771, 7974
Find the wrong number in the given number series.
9, 17, 33, 61, 118, 231
25, 32, 47, 77, 126, 198
29, 36, 59, 74, 105, 144
11, 92, 156, 205, 241, 266
39, 43, 59, 95, 159, 281
A-5,  A,  35,  52, 78, 115