1
NDA Mathematics 10 April 2022
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language

Consider the following for the next three (03) items that follow :

The algebraic sum of the deviations of a set of values x1, x2, x3, ⋯, xn measured from 100 is -20 and the algebraic sum of the deviations of the same set of values measured from 92 is 140.

If the algebraic sum of the deviations of the same set of values measured from y is 180, then what is the value of y ?
A
80
B
85
C
90
D
95
2
NDA Mathematics 10 April 2022
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language

Consider the following frequency distribution for the next three (03) items follow :

Class 0-20 20-40 40-60 60-80 80-100
Frequency 17 p + q 32 p - 3q 19

 

The total frequency is 120. The mean is 50.

What is the value of p ?
A
25
B
26
C
27
D
28
3
NDA Mathematics 10 April 2022
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language

Consider the following frequency distribution for the next three (03) items follow :

Class 0-20 20-40 40-60 60-80 80-100
Frequency 17 p + q 32 p - 3q 19

 

The total frequency is 120. The mean is 50.

What is the value of q ?
A
1
B
2
C
3
D
4
4
NDA Mathematics 10 April 2022
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language

Consider the following frequency distribution for the next three (03) items follow :

Class 0-20 20-40 40-60 60-80 80-100
Frequency 17 p + q 32 p - 3q 19

 

The total frequency is 120. The mean is 50.

If the frequency of each class is doubled, then what would be the mean?
A
25
B
50
C
75
D
100
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12