DMRC Mechanical Engineering Paper-1 2016

The total cost price of two items is Rs. 10,200/- and their selling prices are equal. If one of the two items is sold at a loss of 12% and another is sold at a loss of 18%, then the cost price of the item which is sold at a loss of 18% is:

A petrol tank at a filling station has a capacity of 400 litres. The attendant sells 40 litres of petrol from the tank to one customer and then replenishes it with kerosene oil. This process is repeated with six customers. What quantity of pure petrol will the seventh customer get when he purchases 40 litres of petrol?

A and B are two alloys of gold and copper prepared by mixing metals in the ratios 5:3 and 5:11 respectively. Equal quantities of these alloys are melted to form a thirdalloy C. The ratio of gold and copper in the alloy C is:

The formula for the number of diagonals in a polygon of n sides is d=$$\frac{1}{2}[n(n-3)]$$. If the number of diagonals in a polygon is twice as many as the number of sides,what is the number of sides:

Peeyush walked 8 km. west and turned right and walked 3 kms. Then again he turned right and walked 12 kms. How far is he from the starting point?

Which one of the following statements correctly describes the Fourth Schedule of the constitution of India?

All fish are tortoise, no tortoise is a crocodile:
I.No crocodile is a fish
II.No fish is a crocodile

When three coins are tossed together, the probability that all coins have the same face is:

A man walked diagonally across a square plot. What was the percent saved by not walking along edges?

6 10 7 12 8 14
4 (a) (b) (c) (d) (e)