What is the approach for this question :
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OA : 0.65
Solution
Solution ?
??
Survey was conducted of 100 people to find out whether they had read recent issues of Golmal, a monthly magazine. The summarized information regarding readership in 3 months is given below: Only September: 18; September but not August: 23; September and July: 8; September: 28; July: 48; July and August: 10; None of the three months: 24. What is the number of surveyed people who have read exactly two consecutive issues (out of the three)?
(1) 7
(2) 9
(3) 12
(4) 14
Approach please?
Is there any general approach for these function questions or hit and trial and luck remains our only hope ?
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OA: 18
How to solve such questions :
When a person left, minute and hour hand interchanged their initial positions. How much time he was outside ?
What was the time before and after ?
N is a natural number of atleast 5 digits and its leftmost digit is 6. When this 6 is removed from N, the number thus obtained is found to be 1/25 times of N. What is the SUM of the digits of N ?
There are 100 questions in a question paper.Each correct attempt fetches one mark each wrong attempt attracts a penalty of one-third of a mark .How many different integral scores are possible for a student who attempted exactly 80 questions in the paper????
maximum value of x^2 / (1 + x^4) where x is any real number . Approach please !!
Approach plz
The lines x+y-5=0,x-y-1=0 and the y axis form a triangle.what is the equation of the line parallel to the first line which divides the area of the triangle into two halves??
In a circle AB and AC are equal chords ABC=60°and BC=6cm.Tangents drawn at the points A,B and C when extended meet X,Yand Z what is the area of the triangle XYZ(in cm^2)?????
Solution ??
44.
If the algebraic sum of deviations of 20 observations
measured from 23 is 70, mean of these observations
would be
(a) 24 (b) 25
(c) 26 (d) None of these
How to find remainder of (10! + 111)/13 ?
Three balls at each point of a triangle. All balls move with same velocity, and choose any of the 2 directions. waht is the probability that they never meet?
How many kgs of tea worth Rs. 25 per kg must be
blended with 30 kgs of tea worth Rs. 30 per kg so
that by selling the blended variety at Rs. 30 per kg
there should be a gain of 10%?
(a) 36 kgs (b) 40 kgs
(c) 32 kgs (d) 42 kgs