Delhi Police Constable 7th Dec 2017 Shift-2

Which number is 30% less than 80% of 100?

Rs 15000 is divided among P, Q and R. P's share and Q's share is in the ratio 2: 1 and Q's share and R's share is in the ratio 4 : 3. How much amount (in Rs) will Q receive?

Average age of a group of 20 boys is 15 years. If a boy leaves the group, then the average age becomes 14.5 years. Whatis the age (in years) of the
boy wholeft the group?

What will be the compound interest (in Rs)on a sum of Rs 6000 for 2 years at the rate of 10% per annum?

The profit earned byselling an article for Rs 900 is equal to the loss incurred byselling the samearticle for Rs 500. What should be the selling price (in Rs) ofthe article to earn a profit of 30%?

Whatwill be the net discount (in %) on giving two successive discounts of 30% and 10%?

The breadth of a rectangularhall is 4/5 of its length. If the area ofthe floor is 500 m2, then whatis the difference (in metres) between the length and breadth ofthe hall?

A car travels at a speed of 100 $$\frac{km}{hr}$$ andcovers a particular distance in 2 hour 30 minutes. Another car travelling at the speed of 60 $$\frac{km}{hr}$$ will cover the same distance in how much time (in hours)?

- P and Q have invested in a business in the ratio of 4: 7. P has invested for 21 months. If P and Q receive profit in the ratio of 3 : 5, then for how many month did Q invested?

Two taps P and R can fill a tank in 16 hours and 24 hours respectively while a third tap S can empty the same tank in 48 hours.If all three taps are opened together,then in how many hours the tank will be filled?