Q. If the radius of a circle is increased by 50%, the perimeter of the circle will increase by

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Q. The missing number in the series :

0, 6, 24, 60, 120, ?, 336, is

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Q. A group of 7 members having a majority of boys is to be formed out of 6 boys and 4 girls. The number of ways the group can be formed is

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Q. The number of observations in a group is 40. The average of the first 10 members is 4.5 and the average of the remaining 30 members is 3.5. The average of the whole group is

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Q. The sum of the ages of two persons A and B is 50. 5 years ago, the ratio of their ages was 5/3. The present age of A and B are

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Q. Let a means minus (–), b means multiplied by (ᵡ), C means divided by (÷) and D means plus (+). The value of 90 D 9 a 29 C 10 b 2 is

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Q. Which is the number that comes next in the following sequence?
2, 6, 12, 20, 30, 42, 56, …………

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Q. The price of petrol increases by 25%. By what percentage must a customer reduce the consumption so that the earlier bill on the petrol does not alter?

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Q. If Ram knows that y is an integer greater than 2 and less than 7 and Hari knows that y is an integer greater than 5 and less than 10, then they may correctly conclude that

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Q. Four pipes can fill a reservoir in 15, 20, 30 and 60 hours respectively. The first one was opened at 6 AM, second at 7 AM, third at 8 AM and the fourth at 9 AM. When will the reservoir be filled ?

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Q. What is the number that comes next in the sequence?
2, 5, 9, 19, 37, __

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Q. If the side of the square increases by 40%, then the area of the square increases by

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Q. There are 10 lamps in a hall. Each one of them can be switched on independently. The number of ways in which hall can be illuminated is

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Q. How many numbers between 100 and 300 begin or end with 2?

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Q. In a college having 300 students, every student reads 5 newspapers and every newspaper is read by 60 students. The number of newspapers required is

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Q. Find the wrong number in the sequence
125, 127, 130, 135, 142, 153, 165

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Q. The price of oil is increased by 25%. If the expenditure is not allowed to increase, the ratio between the reduction in consumption and the original consumption is

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Q. How many 8’s are there in the following sequence which are preceded by 5 but not immediately followed by 3?

5 8 3 7 5 8 6 3 8 5 4 5 8 4 7 6 5 5 8 3 5 8 7 5 8 2 8 5

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Q. If a rectangle were called a circle, a circle a point, a point a triangle and a triangle a square, the shape of a wheel is

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Q. Find the wrong number in the sequence :
52, 51, 48, 43, 34, 27, 16

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