Two boys starts from the same place walking at the rate of 5 kmph and 5.5 kmph respectively in the same direction. What time will they take to be 8.5 km apart?

Related Mcqs:

1. A man covers a distance of 20 km in 3.5 hours partly by running and partly by walking. If he walks at 4 kmph and runs at 10 kmph, find the distance he covers by walking.

   A. 10 km
   B. 8 km
   C. 12 km
   D. 9 km

2. Taimoor left for his school at 6 am by foot and walked at the rate of 2 kmph. After reaching his school he found it was closed and immediately turned back and started walking back to his home at 3 kmph. If he reached his home at 9 am, find the distance between his school and his home.

   A. 2.5 km
   B. 7.2 km
   C. 7 km
   D. 3.6 km

3. Two trains 140 metres and 120 metres are running in the same direction with speeds 40 kmph and 60 kmph respectively. In what time will the faster train pass the slower one?

   A. 0.60 minutes
   B. 0.36 minutes
   C. 0.78 minutes
   D. 0.42 minutes

4. The average height of 35 boys in a class was calculated as 180cm. It has later found that the height of one of the boys in the class was wrongly written as 166 cm whereas his actual height was 106 cm. Find the actual average height of the boys in the class (Round off your answer to two decimal places)?

   A. 179.29 cm
   B. 178.29 cm
   C. 179.38 cm
   D. 178.39 cm

5. The average weight of 16 boys in a class is 50.25 kg and that of the remaining 8 boys is 45.15 kg. Find the average weights of all the boys in the class.

   A. 47.55 kg
   B. 48 kg
   C. 48.55 kg
   D. 49.25 kg

6. A car gives a mileage of 20 km per liter of petrol when driven at a constant speed of 50 kmph but the mileage decreases by 10% when driven at a speed of 70 kmph. How many km can the car travel with 12 liters of petrol if it travels a speed of 70 kmph?

   A. 216 km
   B. 240 km
   C. 228 km
   D. 200 km

7. If a man rows at the rate of 5 kmph in still water and his rate against the current is 3.5 kmph. then the man’s rate along the current is__________?

   A. 4.25 kmph
   B. 6 kmph
   C. 6.5 kmph
   D. 8.5 kmph

8. A jogger running at 9 kmph alongside a railway track in 240 metres ahead of the engine of a 120 metres long train running at 45 kmph in the same direction. In how much time will the train pass the joɡɡer?

   A. 3.6 sec
   B. 18 sec
   C. 36 sec
   D. 72 sec

   Submitted by: Shuaib Uddin

9. The ratio of the number of boys and girls in a college is 7 : 8. If the percentage iikcrease in the number of boys and girls be 20% and 10% respectively, what will be the new ratio ?

   A. 8 : 9
   B. 17 : 18
   C. 21 : 22
   D. Cannot be determined

10. A man can row downstream at 18 kmph and upstream at 10 kmph. Find the speed of the man in still water and the speed of stream respectively?

    A. 13, 3
    B. 12, 6
    C. 15, 3
    D. 14, 4