Question
Which of the following is an operating
system?Solution
The correct answer is C
The combined cost price and marked price of Watch 'A' amounts to Rs. 11,000, while for Watch 'B', the total is Rs. 13,400. Watch 'A' is marked 20% above...
The speed of two cars A and B are in the ratio of 14:17 respectively. Car A travels 12 km less than the car B in the same time duration. What was the di...
- Amit covers a journey in 12 hours at a constant speed of 18 km/h. At what speed should he travel to cover the same distance in just 9 hours?
A train crosses a pole in 12 sec, and a bridge of length 170 m in 36 sec. Then the speed of the train is:
<p><p>If a wheel covers a distance of 880 m in 40 rotations, then the diameter of the wheel is?</p></p>
Ratio of speeds of ‘A’ and ‘B’ is 4:9, respectively. If they participate in a 270-metre race and ‘B’ gives ‘A’, a head start of ‘m’ ...
A cat, running at a speed of 54 km/h and positioned 240 meters ahead of a dog, can be caught by the dog in 6(2/3) seconds. Determine the time it takes f...
A car completes a journey in 6 hrs with a speed of 50 km/hr. At what speed must it travel to complete the journey in 10 hrs?
A boy goes to school with a speed of 80 km/h and comes back with a speed of 45 km/h. find his average speed?
From the top of a multi-storey building, the angle of depression to the top of a smaller building (which is 20 meters tall) is 45°. The distance betwee...
