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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Q. In a certain code, PAN is written as 31 and PAR as 35, then PAT is written in the same code as

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Q. If 5472 = 9, 6342 = 6, 7584 = 6, what is 9236 ?

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Q. In an examination, 35% of the total students failed in Hindi, 45% failed in English and 20% in both. The percentage of those who passed in both subjects is

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Q. When an error of 1% is made in the length of a square, the percentage error in the area of a square will be

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Q. On January 12, 1980, it was a Saturday. The day of the week on January 12, 1979 was

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Q. Find the next number in the following series:
2, 5, 10, 17, 26, 37, 50, ?

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Q. January 1, 1995 was a Sunday. What day of the week lies on January 1, 1996?

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Q. When an error of 1% is made in the length and breadth of a rectangle, the percentage error (%) in the area of a rectangle will be

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Q. The next number in the series 2, 5, 9, 19, 37, ? will be

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