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List of top Mathematics Questions asked in MAT
The average score of boys in an examination of a school is 71 and that of girls is 73. The average score of the school in that examination is 71.8. Find the ratio of the number of boys to the number of girls that appeared in the examination.
MAT - 2006
MAT
Mathematics
Average
Population of a district is 2,96,000 of which 1,66,000 are males.
\(50\%\)
of the population is literate. If
\(70\%\)
males are literate, then the number of women who are literate, is
MAT - 2006
MAT
Mathematics
Percentage
A shopkeeper marks up his goods to gain
\(35\%\)
. But he allows
\(10\%\)
discount for cash payment. His profit on the cash transaction therefore, in percentage, is
MAT - 2006
MAT
Mathematics
Percentage
The probability that a certain electronic component fails when first used is 0.10. If it does not fail immediately, then the probability that it lasts for one year is 0.99. The probability that a new component will last for one year is
MAT - 2006
MAT
Mathematics
Probability
Students of a class are made to stand in rows. If 4 students are extra in each row, then there would be 2 rows less. If 4 students are less in each row, then there would be 4 more rows. The number of students in the class is
MAT - 2006
MAT
Mathematics
Elementary Mathematics
An aeroplane flying at a height of 300 metres above the ground passes vertically above another plane at an instant when the angles of elevation of the two planes from the same point on the ground are
\(60^\circ\)
and
\(45^\circ\)
, respectively. Then the height of the lower plane from the ground, in metres, is
MAT - 2006
MAT
Mathematics
Trigonometry
Speed of a speedboat when moving in the direction perpendicular to the direction of the current is 16 km/hr. Speed of the current is 3 km per hour. So the speed of the boat against the current will be (in km/hr)
MAT - 2006
MAT
Mathematics
Boat and Stream
A metal cube of edge 12 cm is melted and formed into three smaller cubes. If the edges of two smaller cubes are 6 cm and 8 cm, then find the edge of the third smaller cube.
MAT - 2006
MAT
Mathematics
Mensuration
Out of 13 applicants for a job, there are 5 women and 8 men. It is desired to select 2 persons for the job. The probability that atleast one of the selected persons will be a woman is
MAT - 2006
MAT
Mathematics
Probability
The number of ways in which a committee of 3 ladies and 4 gentlemen can be appointed from a meeting consisting of 8 ladies and 7 gentlemen, if Mrs X refuses to serve in a committee if Mr Y is its member, is
MAT - 2006
MAT
Mathematics
Permutations and Combinations
A part of monthly expenses of a family is constant and the remaining varies with the price of wheat. When the rate of wheat is Rs 250 a quintal, the total monthly expenses of the family are Rs 1000 and when it is Rs 240 a quintal, the total monthly expenses are Rs 980. Find the total monthly expenses of the family when the cost of wheat is Rs 350 a quintal.
MAT - 2006
MAT
Mathematics
Linear Programming
A chemist has 10 litres of a solution that is 10 per cent nitric acid by volume. He wants to dilute the solution to 4 per cent strength by adding water. How many litres of water must he add?
MAT - 2006
MAT
Mathematics
Mixtures and Allegations
A rectangular tank is 225 m by 162 m at the base. With what speed must water flow into it through an aperture 60 cm by 45 cm that the level may be raised 20 cm in 5 hours?
MAT - 2006
MAT
Mathematics
Mensuration
A well 22.5 deep and of diameter 7m has to be dug out. Find the cost of plastering its inner curved surface at Rs 3 per sq metre.
MAT - 2006
MAT
Mathematics
Mensuration
A sink contains exactly 12 litres of water. If water is drained from the sink until it holds exactly 6 litres of water less than the quantity drained away, then how many litres of water were drained away?
MAT - 2006
MAT
Mathematics
Time and Work
A train covers 180 km distance in 4 hours. Another train covers the same distance in 1 hour less.What is the difference in the distances covered by these trains in one hour?
MAT - 2006
MAT
Mathematics
Problem on Trains
A train covered a certain distance at a uniform speed. If the train had been 6 km/hr faster, then it would have taken 4 hours less than the scheduled time. And, if the train were slower by 6km/hr, then the train would have taken 6 hours more than the scheduled time. The length of the journey is
MAT - 2006
MAT
Mathematics
Problem on Trains
A man on the top of a vertical tower observes a car moving at a uniform speed coming directly towards it. If it takes 12 minutes for the angle of depression to change from
\(30^\circ\)
to
\(45^\circ\)
, then how soon, after this, will the car reach the tower?
MAT - 2006
MAT
Mathematics
Trigonometry
At a point on level ground, the angle of elevation of a vertical tower is found to be such that its tangent is
\(\frac{5}{12}\)
. On walking 192 metres towards the tower, the tangent of the angle of elevation is
\(\frac{3}{4}\)
. The height of the tower is
MAT - 2006
MAT
Mathematics
Geometry
Water flows out through a circular pipe whose internal diameter is 2 cm, at the rate of 6 metres per second into a cyclindrical tank, the radius of whose base is 60 cm. By how much will the level of water rise in 30 minutes?
MAT - 2006
MAT
Mathematics
Mensuration
An iron pipe 20 cm long has exterior diameter equal to 25 cm. If the thickness of the pipe is 1 cm, then the whole surface of the pipe is
MAT - 2006
MAT
Mathematics
Mensuration
A metallic sheet is of rectangular shape with dimensions 48 cm
\(\times\)
36 cm. From each one of its corners, a square of 8 cm is cut off. An open box is made of the remaining sheet. Find the volume of the box.
MAT - 2006
MAT
Mathematics
Mensuration
There are 4 candidates for the post of a lecturer in Mathematics and one is to be selected by votes of 5 men. The number of ways in which the votes can be given is
MAT - 2006
MAT
Mathematics
Probability
The number of ways in which 6 men and 5 women can dine at a round table if no two women are to sit together is given by
MAT - 2006
MAT
Mathematics
Probability
A room has 3 lamps. From a collection of 10 light bulbs of which 6 are not good, a person selects 3 at random and puts them in a socket. The probability that he will have light is
MAT - 2006
MAT
Mathematics
Probability
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