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Let number of pens with Sumit, Rohan, Chetan, Dheeraj and Gagan be 2x, 3x, 4x, 5x and 6x respectively. It is clear from the question that Chetan has 40 pens which is 20% of total number of pens Let total number of pens be x. ∴ 20% of x = 40⇒ x = 200 ∴ Rohan has 3/20 × 200 = 30 pens
C can do a piece of work in 20 days, and D can do the same work in 25 days. They start working together, but after 8 days, C leaves. In how many more da...
Average speed of ‘A’ during a 24-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...
Armaan is traveling at a speed of 40 km/h, and it takes him 90 minutes to reach his office. However, after completing half of the journey, Armaan took a...
The speed of a car is 60% more than the speed of a bus. The train can cover (d-250) km distance in (t-3.5) hours. The car covers (d+140) km distance in ...
The speed of two cars A and B are in the ratio of 13:17 respectively. Car A travels 16 km less than the car B in the same time duration. What was the di...
A man travels some distance at a speed of 16 km/hr and returns at a speed of 8 km/hr. If the total time taken by him is 3 hrs 45 min, the distance is
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...
A man travelled a total distance of 300 km. He travelled first 100 km on car with a speed of 20 km/h and rest of the distance on bike whose speed is 10 ...
A person covers the first 288 km at a speed of 64 km/h, then travels the next 220 km at a speed of 40 km/h, and finally completes the remaining 288 km ...
In a 550-metre race, ‘A’ beats ‘B’ by 12 seconds or 60 metres. Find the time taken by ‘B’ to finish the race.
