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Question 1
If a + 
= b + 
= c + 
, where a 
b 
c 
0, then the value of a2 b2 c2 is
= b + = c + , where a b c 0, then the value of a2 b2 c2 is Question 2
If 
then find the value of 
.
then find the value of . Question 3
, find the value of 16a+12b+12c+2. Question 4
If 
then 
is equal to
then is equal to Question 5
The value of [cosec260° + sec260° – cot260° + tan230°] will be:
Question 6
In a class of 65 students there are 39 girls. The average weight of these girls is 60 kg and average weight of the full class is 64 kgs. What is the average weight of the boys of the class ?
Question 7
A cistern can be filled with water by a pipe in 5 hrs and it can be emptied by a second pipe in 4 hrs. If both the pipes are opened together when cistern was full, the time in which cistern will be emptied is:
Question 8
If the height of a cone is increased by 100% then its volume is increased by:
Question 9
The length of a minute hand of a clock is 7cm. The area swept by the minute hand in 30 minutes is :
Question 10
The curved surface of a cylindrical pillar is 264 m2 and its volume is 924 m3. The ratio of its diameter to its height is 
Question 11
If x2+y2+z2 = xy+yz+zx , then the triangle is:
Question 12
is an equilateral triangle and D, E are midpoints of AB and BC respectively. Then the area of 
: the area of the trapezium ADEC is Question 13
An equilateral triangle ABC having its centroid as G as shown in figure. If AB = 12 cm, then find the length of AG?
Question 14
Two coins are tossed simultaneously ten times and the outcomes are recorded as follows: 
. What is the mode of this record?
. What is the mode of this record? Question 15
Direction: Consider the following frequency distribution table:
What is the approximate mode of the distribution?
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May 21CDS & Defence
