DMRC Civil Engineering Paper-1 2015

One side of a right-angled triangle is 126 cm. The difference between the hypotenuse and the other side is 42 cm. The length of the hypotenuse is:

Three wheels make 60, 36 and 24 revolutions per minute. Each has a red spot on its rim, which is at the lowest position at time zero. The red spot will all be at this position again after:

A train can travel 50% faster than a car. Both start from point A at the same time and reach point B 75 kms away from A at the same time. On the way, however, the train lost about 12.5 minutes while stopping at the stations. The speed of the car is:

An empty tank is connected with pipes A, B and C. A and B are inlet pipes and they fill the tank in 6 hours and 8 hours respectively, while C is an outlet pipe and it empties the completely filled tank in 5 hours. Find the time in which the tank will be completely filled if all the pipes are opened together.

Probability of getting a multiple of 2 on one dice and a multiple of 3 on the other dice, when both dice are thrown simultaneously is:

Mid points of the side of an equilateral triangle of side 18 cm are joined to form another triangle, whose mid points are further joined to form a different triangle and this process is repeated indefinitely. The sum of the perimeters of all the triangles will be:

If the radius of a right circular cylinder is decreased by 50% and its height is increased by 60%, its volume will be decreased by:

A hall 50 m long and 45 m broad is to be paved with square tiles. Find the largest tile as well as its number in the given options so that the tiles exactly fit in the hall?

Number of students in different specialisations in an institute

Figure

Number of students in specialisation II is what percent of the total number of students in the institute.

The perimeter of a rhombus is 40 cm and the measure of an angle is $$60^\circ$$, then the area of it is -