Question
A cyclist travels from town A to town B at a speed of 20
km/h and returns to town A at a speed of 30 km/h. If the total distance between the towns is 120 km, what is the average speed of the cyclist for the entire journey?Solution
Time taken to travel from A to B = Distance / Speed = 120 / 20 = 6 hours. Time taken to travel from B to A = Distance / Speed = 120 / 30 = 4 hours. Total distance = 120 + 120 = 240 km. Total time = 6 + 4 = 10 hours. Average speed = Total distance / Total time = 240 / 10 = 24 km/h. Correct answer: A) 24 km/h
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
99.99% of 9.99 + 299.98% of 129.98 = ?2Â
456.9 + 328.10 - 122.98 = ? + 232.11
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
The average marks of 15 candidates were reported as 84. However, it was later discovered that the marks of three candidates were ...
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
15.15% of (150.50 + 249.50) + 8.08³ - (10.10 of 5.05) = ? of (75.75 - 25.25)
A motor boat goes downstream from point A to B ,which is 36 km away from point A, and then returns to A. If actual speed of the boat in still water is 7...
