Write the ratio of the heights of highest peak and the lowest peak?
22:15
15:22
20 :13
13:22
If in a data, 10 numbers arranged in increasing order.If the 7th entry is increased by 4, then the median increases by
0
4
6
5
The mean of x - 5y , x - 3y , x - y , x + y, x + 3y and x + 5y is 12.Then the value of x is
18
12
Cannot be determined
Data is not sufficient
The mean of first five prime numbers is
5.6
3.6
6.83
5.2
The mean of 10 observation is 25.If one observation,namely 25, is deleted, the new mean is
25
20
28
22
The mean of x , x + 3, x + 6, x + 9 and x + 12 is
x + 6
x + 3
x + 9
x + 12
At what subject is the student sharp ?
English
Mathematics
Science
History
The mean of first six multiplies of 4 is
13.5
14.5
14
16
The arithmetic mean of five given numbers is 85.Their sum is
425
85
Between 85 and 425
More than 425
The mode of a set of observations is the value which
occurs most frequently
is central
is between maximum and minimum
None of these
