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CBSE->Plus 1 Computer Science Questions

Total Questions 228
The arithmetic mean of the following data is 472 and total number of employees are 100. Find the values of p and q. Daily income - 200-300 300-400 400-500 500-600 600-700 700-800 800-900 frequency - 5 p 24 q 9 6 4
Find median wage. C.I - More than or equal to 80 More than or equal to 90 more than or equal to 100 more than or equal to 110 more than or equal to 120 more than or equal to 130 more than or equal to 140 more than or equal to 150 frequency - 160 151 134 104 60 29 10 0
Find mean by shortcut method. C.I - 0-10 10-20 20-30 30-40 40-50 frequency - 7 10 15 8 10
Use step deviation method to find mean. C.I - 0-20 20-40 40-60 60-80 80-100 frequency - 15 18 21 29 17
Find mean by using shortcut method. Class interval - 0-10 10-20 20-30 30-40 40-50 Frequency - 15 18 21 19 17
Find the mean of the following data by a suitable method. Number of wickets - 20-60 60-100 100-150 150-250 250-350 350-450 Number of bowlers - 7 5 16 12 2 3
WHO WAS THE INVENTOR OF SUPERCOMPUTER?
WHAT IS DIELECTRIC HEATING?
WHAT IS SURFACE TENSION,VICOSITY,VAPOUR PRESSURE?
please give trignometric identities?
what is friction? types of friction?
What is AVAGADRO LAW?
which is the greatest number which divides 209 and 119 and leaves a remainder 5 in each case .
Sides AB and AC and median AD of a triangle ABC are respectively proportional to sides PQ and PR and median PM of another triangle PQR. Show that triangle ABC is similar to triangle PQR.
If p and q are the zeroes of the polynomial 2x²+3x+2 then find the value of- 1) p+q+pq 2) pq(p+q) 3) 1/p + 1/q 4) p/q + q/p
The median of the following data is 52.5 . Find the values of x and y if total sum of the frequency is 100. C.I- 0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80 80-90 90-100 Frequency- 2 5 x 12 17 20 y 9 7 4
What is soil and what are the different types of soil?
Describe how the issues of caste was included in novels in India. By referring to any two novels, discuss the ways in which they tried to make readers think about existing social issues.
In what ways was the novel in colonial India useful for both the colonisers as well as the nationalists?
what happens when nitric acid is added to egg shells?