Scroll:Distance, Time and Speed >> Distance, Time & Speed >> ps (691)


Written Instructions:

For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..

For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.

Leave your answers in the simplest form or correct to two decimal places.



 

1)  

Chidambaram took 3 hours from Town A to Town B. He covered 15 of the journey in the first 1 hour, the next 35 of it in the second hour and the rest in the third hour. Given that his average speed for the first two hours was 36 kmh , find his average speed for the whole journey.

kmh


Answer:_______________




2)  

Barathan took 3 hours from Town A to Town B. He covered 15 of the journey in the first 1 hour, the next 35 of it in the second hour and the rest in the third hour. Given that his average speed for the first two hours was 48 kmh , find his average speed for the whole journey.

kmh


Answer:_______________




3)  

Balaji took 3 hours from Town A to Town B. He covered 25 of the journey in the first 1 hour, the next 25 of it in the second hour and the rest in the third hour. Given that his average speed for the first two hours was 60 kmh , find his average speed for the whole journey.

kmh


Answer:_______________




4)  

Selvan took 3 hours from Town A to Town B. He covered 25 of the journey in the first 1 hour, the next 25 of it in the second hour and the rest in the third hour. Given that his average speed for the first two hours was 36 kmh , find his average speed for the whole journey.

kmh


Answer:_______________




5)  

Balaji took 3 hours from Town A to Town B. He covered 15 of the journey in the first 1 hour, the next 35 of it in the second hour and the rest in the third hour. Given that his average speed for the first two hours was 60 kmh , find his average speed for the whole journey.

kmh


Answer:_______________




6)  

Karna took 3 hours from Town A to Town B. He covered 35 of the journey in the first 1 hour, the next 15 of it in the second hour and the rest in the third hour. Given that his average speed for the first two hours was 108 kmh , find his average speed for the whole journey.

kmh


Answer:_______________




7)  

Kumar took 3 hours from Town A to Town B. He covered 25 of the journey in the first 1 hour, the next 25 of it in the second hour and the rest in the third hour. Given that his average speed for the first two hours was 72 kmh , find his average speed for the whole journey.

kmh


Answer:_______________




8)  

Chidambaram took 3 hours from Town A to Town B. He covered 35 of the journey in the first 1 hour, the next 15 of it in the second hour and the rest in the third hour. Given that his average speed for the first two hours was 60 kmh , find his average speed for the whole journey.

kmh


Answer:_______________




9)  

Karna took 3 hours from Town A to Town B. He covered 25 of the journey in the first 1 hour, the next 25 of it in the second hour and the rest in the third hour. Given that his average speed for the first two hours was 72 kmh , find his average speed for the whole journey.

kmh


Answer:_______________




10)  

Prem took 3 hours from Town A to Town B. He covered 35 of the journey in the first 1 hour, the next 15 of it in the second hour and the rest in the third hour. Given that his average speed for the first two hours was 60 kmh , find his average speed for the whole journey.

kmh


Answer:_______________




 

1)  

Chidambaram took 3 hours from Town A to Town B. He covered 15 of the journey in the first 1 hour, the next 35 of it in the second hour and the rest in the third hour. Given that his average speed for the first two hours was 36 kmh , find his average speed for the whole journey.

Answer: 30 kmh


SOLUTION 1 :
Step 1: Distance travelled in the first 2 hours  → 2 h x 36 kmh
     =  72 km

Step 2: 15 + 35 = 45

Step 3: 45 of the journey  72 km
  15 of the journey  72 km ÷ 4
    =  18 km
  55 of the journey  5 x 18 km
    = 90 km
Step 4: Average speed for the whole journey  → 90 km ÷ 3 h
     =  30 kmh


2)  

Barathan took 3 hours from Town A to Town B. He covered 15 of the journey in the first 1 hour, the next 35 of it in the second hour and the rest in the third hour. Given that his average speed for the first two hours was 48 kmh , find his average speed for the whole journey.

Answer: 40 kmh


SOLUTION 1 :
Step 1: Distance travelled in the first 2 hours  → 2 h x 48 kmh
     =  96 km

Step 2: 15 + 35 = 45

Step 3: 45 of the journey  96 km
  15 of the journey  96 km ÷ 4
    =  24 km
  55 of the journey  5 x 24 km
    = 120 km
Step 4: Average speed for the whole journey  → 120 km ÷ 3 h
     =  40 kmh


3)  

Balaji took 3 hours from Town A to Town B. He covered 25 of the journey in the first 1 hour, the next 25 of it in the second hour and the rest in the third hour. Given that his average speed for the first two hours was 60 kmh , find his average speed for the whole journey.

Answer: 50 kmh


SOLUTION 1 :
Step 1: Distance travelled in the first 2 hours  → 2 h x 60 kmh
     =  120 km

Step 2: 25 + 25 = 45

Step 3: 45 of the journey  120 km
  15 of the journey  120 km ÷ 4
    =  30 km
  55 of the journey  5 x 30 km
    = 150 km
Step 4: Average speed for the whole journey  → 150 km ÷ 3 h
     =  50 kmh


4)  

Selvan took 3 hours from Town A to Town B. He covered 25 of the journey in the first 1 hour, the next 25 of it in the second hour and the rest in the third hour. Given that his average speed for the first two hours was 36 kmh , find his average speed for the whole journey.

Answer: 30 kmh


SOLUTION 1 :
Step 1: Distance travelled in the first 2 hours  → 2 h x 36 kmh
     =  72 km

Step 2: 25 + 25 = 45

Step 3: 45 of the journey  72 km
  15 of the journey  72 km ÷ 4
    =  18 km
  55 of the journey  5 x 18 km
    = 90 km
Step 4: Average speed for the whole journey  → 90 km ÷ 3 h
     =  30 kmh


5)  

Balaji took 3 hours from Town A to Town B. He covered 15 of the journey in the first 1 hour, the next 35 of it in the second hour and the rest in the third hour. Given that his average speed for the first two hours was 60 kmh , find his average speed for the whole journey.

Answer: 50 kmh


SOLUTION 1 :
Step 1: Distance travelled in the first 2 hours  → 2 h x 60 kmh
     =  120 km

Step 2: 15 + 35 = 45

Step 3: 45 of the journey  120 km
  15 of the journey  120 km ÷ 4
    =  30 km
  55 of the journey  5 x 30 km
    = 150 km
Step 4: Average speed for the whole journey  → 150 km ÷ 3 h
     =  50 kmh


6)  

Karna took 3 hours from Town A to Town B. He covered 35 of the journey in the first 1 hour, the next 15 of it in the second hour and the rest in the third hour. Given that his average speed for the first two hours was 108 kmh , find his average speed for the whole journey.

Answer: 90 kmh


SOLUTION 1 :
Step 1: Distance travelled in the first 2 hours  → 2 h x 108 kmh
     =  216 km

Step 2: 35 + 15 = 45

Step 3: 45 of the journey  216 km
  15 of the journey  216 km ÷ 4
    =  54 km
  55 of the journey  5 x 54 km
    = 270 km
Step 4: Average speed for the whole journey  → 270 km ÷ 3 h
     =  90 kmh


7)  

Kumar took 3 hours from Town A to Town B. He covered 25 of the journey in the first 1 hour, the next 25 of it in the second hour and the rest in the third hour. Given that his average speed for the first two hours was 72 kmh , find his average speed for the whole journey.

Answer: 60 kmh


SOLUTION 1 :
Step 1: Distance travelled in the first 2 hours  → 2 h x 72 kmh
     =  144 km

Step 2: 25 + 25 = 45

Step 3: 45 of the journey  144 km
  15 of the journey  144 km ÷ 4
    =  36 km
  55 of the journey  5 x 36 km
    = 180 km
Step 4: Average speed for the whole journey  → 180 km ÷ 3 h
     =  60 kmh


8)  

Chidambaram took 3 hours from Town A to Town B. He covered 35 of the journey in the first 1 hour, the next 15 of it in the second hour and the rest in the third hour. Given that his average speed for the first two hours was 60 kmh , find his average speed for the whole journey.

Answer: 50 kmh


SOLUTION 1 :
Step 1: Distance travelled in the first 2 hours  → 2 h x 60 kmh
     =  120 km

Step 2: 35 + 15 = 45

Step 3: 45 of the journey  120 km
  15 of the journey  120 km ÷ 4
    =  30 km
  55 of the journey  5 x 30 km
    = 150 km
Step 4: Average speed for the whole journey  → 150 km ÷ 3 h
     =  50 kmh


9)  

Karna took 3 hours from Town A to Town B. He covered 25 of the journey in the first 1 hour, the next 25 of it in the second hour and the rest in the third hour. Given that his average speed for the first two hours was 72 kmh , find his average speed for the whole journey.

Answer: 60 kmh


SOLUTION 1 :
Step 1: Distance travelled in the first 2 hours  → 2 h x 72 kmh
     =  144 km

Step 2: 25 + 25 = 45

Step 3: 45 of the journey  144 km
  15 of the journey  144 km ÷ 4
    =  36 km
  55 of the journey  5 x 36 km
    = 180 km
Step 4: Average speed for the whole journey  → 180 km ÷ 3 h
     =  60 kmh


10)  

Prem took 3 hours from Town A to Town B. He covered 35 of the journey in the first 1 hour, the next 15 of it in the second hour and the rest in the third hour. Given that his average speed for the first two hours was 60 kmh , find his average speed for the whole journey.

Answer: 50 kmh


SOLUTION 1 :
Step 1: Distance travelled in the first 2 hours  → 2 h x 60 kmh
     =  120 km

Step 2: 35 + 15 = 45

Step 3: 45 of the journey  120 km
  15 of the journey  120 km ÷ 4
    =  30 km
  55 of the journey  5 x 30 km
    = 150 km
Step 4: Average speed for the whole journey  → 150 km ÷ 3 h
     =  50 kmh