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Mathematics Mcqs

A boy goes to his school from his house at a speed of 3 km / hr and returns at a speed of 2 km / hr. If he takes 5 hours in going and coming, the distance between his house and school is :___________?

Mathematics Mcqs, Time & Distance Mcqs /
A boy goes to his school from his house at a speed of 3 km / hr and returns at a speed of 2 km / hr. If he takes 5 hours in going and coming, the distance between his house and school is :___________?

A. 5 km
B. 5.5 km
C. 6 km
D. 6.5 km
Average speed = ( 2 X 3 X 2/3 + 2 ) km/ hr = 12/5 km/ hr. Distance travelled = ( 12/5 X 5 )km = 12 km. So Distance between house and school = ( 12/2 )km = 6 km.

A boy goes to his school from his house at a speed of 3 km / hr and returns at a speed of 2 km / hr. If he takes 5 hours in going and coming, the distance between his house and school is :___________? Read More »

Mathematics Mcqs, Time & Distance Mcqs

An express train travelled at an average speed of 100 km / hr, stopping for 3 minutes after every 75 km. How long did it take to reach its destination 600 km from the starting point ?

Mathematics Mcqs, Time & Distance Mcqs /
An express train travelled at an average speed of 100 km / hr, stopg for 3 minutes after every 75 km. How long did it take to reach its destination 600 km from the starting point ?

A. 6 hrs 21 min
B. 6 hrs 24 min
C. 6 hrs 27 min
D. 6 hrs 30 min
Time taken to cover 600 km = ( 600/100 ) hrs = 6 hrs. Number of stoppages = ( 600/75 – 1 ) = 7 Total time of stoppage = (3 x 7) min = 21 min. Hence, total time taken = 6 hrs 21 min.

An express train travelled at an average speed of 100 km / hr, stopping for 3 minutes after every 75 km. How long did it take to reach its destination 600 km from the starting point ? Read More »

Mathematics Mcqs, Time & Distance Mcqs

A walks around a circular field at the rate of one round per hour while B runs around it at the rate of six rounds per hour. They start in the same direction from the same point at 7.30 a.m. They shall first cross each other at :___________?

Mathematics Mcqs, Time & Distance Mcqs /
A walks around a circular field at the rate of one round per hour while B runs around it at the rate of six rounds per hour. They start in the same direction from the same point at 7.30 a.m. They shall first cross each other at :___________?

A. 7.42 a.m.
B. 7.48 a.m.
C. 8.10 a.m.
D. 8.30 a.m.

A walks around a circular field at the rate of one round per hour while B runs around it at the rate of six rounds per hour. They start in the same direction from the same point at 7.30 a.m. They shall first cross each other at :___________? Read More »

Mathematics Mcqs, Time & Distance Mcqs

A can complete a journey in 10 hours. He travels first half of the journey at the rate of 21 km / hr and second half at the rate of 24 km / hr. Find the total journey in km.

Mathematics Mcqs, Time & Distance Mcqs /
A can complete a journey in 10 hours. He travels first half of the journey at the rate of 21 km / hr and second half at the rate of 24 km / hr. Find the total journey in km.

A. 220 km
B. 224 km
C. 230 km
D. 234 km

A can complete a journey in 10 hours. He travels first half of the journey at the rate of 21 km / hr and second half at the rate of 24 km / hr. Find the total journey in km. Read More »

Mathematics Mcqs, Time & Distance Mcqs

A train covers a distance of 10 km in 12 minutes. If its speed is decreased by 5 km /hr, the time taken by it to cover the same distance will be :__________?

Mathematics Mcqs, Time & Distance Mcqs /
A train covers a distance of 10 km in 12 minutes. If its speed is decreased by 5 km /hr, the time taken by it to cover the same distance will be :__________?

A. 10 min
B. 11 min 20 sec
C. 13 min
D. 13 min 20 sec
Speed = (10 X 60/12 ) km/hr = 50 km/hr. New speed = (50 – 5) km / hr = 45 km /hr. So Time taken = ( 10/45 ) hr = ( 2/9X 60 )min 131/3 min = 13 min 20 sec.

A train covers a distance of 10 km in 12 minutes. If its speed is decreased by 5 km /hr, the time taken by it to cover the same distance will be :__________? Read More »

Mathematics Mcqs, Time & Distance Mcqs

The radius of the cylinder is half its height and area of the inner part is 616 sq. cms. Approximately how many litres of milk can it contain ?

Mathematics Mcqs, Volume and Surface Area Mcqs /
The radius of the cylinder is half its height and area of the inner part is 616 sq. cms. Approximately how many litres of milk can it contain ?

A. 1.4
B. 1.5
C. 1.7
D. 1.9

The radius of the cylinder is half its height and area of the inner part is 616 sq. cms. Approximately how many litres of milk can it contain ? Read More »

Mathematics Mcqs, Volume and Surface Area Mcqs

The capacity of a cylindrical tank is 246.4 litres. If the height is 4 metres, what is the diameter of the base ?

Mathematics Mcqs, Volume and Surface Area Mcqs /
The capacity of a cylindrical tank is 246.4 litres. If the height is 4 metres, what is the diameter of the base ?

A. 1.4 m
B. 2.8 m
C. 14 m
D. None of these

The capacity of a cylindrical tank is 246.4 litres. If the height is 4 metres, what is the diameter of the base ? Read More »

Mathematics Mcqs, Volume and Surface Area Mcqs

A boat having a length 3 m and breadth 2 m is floating on a lake The boat sinks by 1 cm when a man gets on it. The mass of man is :__________?

Mathematics Mcqs, Volume and Surface Area Mcqs /
A boat having a length 3 m and breadth 2 m is floating on a lake The boat sinks by 1 cm when a man gets on it. The mass of man is :__________?

A. 12 kg
B. 60 kg
C. 72 kg
D. 96 kg
Volume of water displaced = (3 X 2 X 0.01) m3 = 0.06 m3.
Mass of man = Volume of water displaced X Density of water
= (0.06 X 1000) kg = 60 kg.

A boat having a length 3 m and breadth 2 m is floating on a lake The boat sinks by 1 cm when a man gets on it. The mass of man is :__________? Read More »

Mathematics Mcqs, Volume and Surface Area Mcqs

The areas of the three adjacent faces of a rectangular box which meet in a point are known. The product of these areas is equal to :___________?

Mathematics Mcqs, Volume and Surface Area Mcqs /
The areas of the three adjacent faces of a rectangular box which meet in a point are known. The product of these areas is equal to :___________?

A. the volume of the box
B. twice the volume of the box
C. the square of the volume of the box
D. the cube root of the volume of the box
Let length = 1, breadth = b and height = h. Then,
Product of areas of 3 adjacent faces = (lb x bh x 1h) = (lbh)2 = (Volume)2.

The areas of the three adjacent faces of a rectangular box which meet in a point are known. The product of these areas is equal to :___________? Read More »

Mathematics Mcqs, Volume and Surface Area Mcqs