Which one of the following is not an error of commission?
The correct answer is D
Ratio of speeds of ‘A’ and ‘B’ is 6:7, respectively. If they participate in a 140-metre race and ‘B’ gives ‘A’, a head start of ‘m’ ...
Average speed of ‘A’ during a 40-hour journey is 36 km/h. If he covered the first 160 km of his journey at a speed of 20 km/h, then find the speed a...
A and B are travelling towards each other with a speed of 70 km/hr and 80 km/hr. If they started at same time and A covered 30 km less distance than B b...
Suniti goes to gym at a speed of 3 km/hr and returns back at a speed of 5 km/hr. If she takes 8 hrs in all. Find the distance between her home and gym.
The speed of a bike increases by 4 km/hr after every 1 hour. If the distance travelled by the bike in 1st hour is 27 km, the find the total distance tra...
500 metres long train crosses a man who is moving in the same direction with a certain speed, in 50 seconds. If the same train can cross a tree in 20 se...
A man travels some distance at a speed of 16 km/hr and returns at a speed of 12 km/hr. If the total time taken by him is 2 hrs 20 min, the distance is
A boy goes to his school at 1/6th of the speed at which he returns from his school. Average speed during the whole trip (i.e. one round) is 24 km/h. Wha...
Two person A and B started from same place and in same direction with speed of 48km/hr and 40km/hr respectively .The speed of person B increased by &fra...
A boy can swim a certain distance downstream in 5 hours and return in 7 hours. If the rate of stream is 4 kmph then what is the speed of boy in still wa...
