EduSahara™ Assignment
Name : Relative Speed Concepts
Chapter : Time and Distance
Grade : ICSE Grade VIII
License : Non Commercial Use
Question 1
1.
In how much time will a train A of length 268.78 m travelling at a speed of 8.26 m/sec will cross another train B of length 338.73 m travelling in the same direction at a speed of 7.85 m/sec?
  • (i)
    1480.73 sec
  • (ii)
    1482.73 sec
  • (iii)
    1479.73 sec
  • (iv)
    1483.73 sec
  • (v)
    1481.73 sec
Question 2
2.
In how much time will a train A of length 234.88 m travelling at a speed of 11.10 m/sec will cross another train B of length 130.34 m travelling in the opposite direction at a speed of 8.27 m/sec?
  • (i)
    18.85 sec
  • (ii)
    20.85 sec
  • (iii)
    16.85 sec
  • (iv)
    17.85 sec
  • (v)
    19.85 sec
Question 3
3.
In how much time will a train of length 378.58 m travelling at a speed of 9.18 m/sec crosses a man riding a cycle in the same direction at a speed of 3.92 m/sec?
  • (i)
    71.97 sec
  • (ii)
    69.97 sec
  • (iii)
    72.97 sec
  • (iv)
    70.97 sec
  • (v)
    73.97 sec
Question 4
4.
In how much time will a train of length 380.47 m travelling at a speed of 7.62 m/sec crosses a man riding a cycle in the opposite direction at a speed of 6.92 m/sec?
  • (i)
    27.17 sec
  • (ii)
    28.17 sec
  • (iii)
    26.17 sec
  • (iv)
    24.17 sec
  • (v)
    25.17 sec
Question 5
5.
A motor boat can move at a speed of 12.17 m/sec in still water. If it goes upstream for 425.27 sec, it travels a distance of 1952.00 m. What is the speed of the stream?
  • (i)
    6.58 m/sec
  • (ii)
    8.58 m/sec
  • (iii)
    5.58 m/sec
  • (iv)
    9.58 m/sec
  • (v)
    7.58 m/sec
Question 6
6.
A motor boat can move at a speed of 22.20 m/sec in still water. If it goes downstream for 123.33 sec, it travels a distance of 3880.00 m. What is the speed of the stream?
  • (i)
    11.26 m/sec
  • (ii)
    9.26 m/sec
  • (iii)
    10.26 m/sec
  • (iv)
    7.26 m/sec
  • (v)
    8.26 m/sec
Question 7
7.
A motor boat can travel at a speed of 13.00 m/sec downstream and 4.16 m/sec upstream. What is the speed of the motor boat in still water?
  • (i)
    9.58 m/sec
  • (ii)
    7.58 m/sec
  • (iii)
    8.58 m/sec
  • (iv)
    10.58 m/sec
  • (v)
    6.58 m/sec
Question 8
8.
A motor boat can travel at a speed of 26.91 m/sec downstream and 7.99 m/sec upstream. What is the speed of the stream?
  • (i)
    8.46 m/sec
  • (ii)
    7.46 m/sec
  • (iii)
    10.46 m/sec
  • (iv)
    9.46 m/sec
  • (v)
    11.46 m/sec
Question 9
9.
A motor boat can travel at a speed of 8.85 m/sec downstream and 1.43 m/sec upstream. How much distance can the boat travel in 39.68 sec in still water?
  • (i)
    202.96 m
  • (ii)
    205.96 m
  • (iii)
    201.96 m
  • (iv)
    204.96 m
  • (v)
    203.96 m
Question 10
10.
A motor boat can travel at a speed of 15.49 m/sec downstream and 10.83 m/sec upstream. How much time will it take to cross a distance of 332.68 m in still water?
  • (i)
    23.28 sec
  • (ii)
    26.28 sec
  • (iii)
    25.28 sec
  • (iv)
    27.28 sec
  • (v)
    24.28 sec
Question 11
11.
The speed of a motor boat is 31.68 m/sec and the speed of a stream is 22.94 m/sec. A & B are two location adjacent to a stream. If it takes 488.16 sec to go from point A to B and come back, What is the distance between A and B?
  • (i)
    3675.99 m
  • (ii)
    3677.99 m
  • (iii)
    3678.99 m
  • (iv)
    3676.99 m
  • (v)
    3679.99 m
Question 12
12.
The speed of a motor boat is 11.88 m/sec and the speed of a stream is 6.14 m/sec. A & B are two location adjacent to a stream. If the distance between A and B is 3665.00 m, how much time will it take to go from A to B and back to A?
  • (i)
    841.89 sec
  • (ii)
    840.89 sec
  • (iii)
    843.89 sec
  • (iv)
    842.89 sec
  • (v)
    839.89 sec
Question 13
13.
The distance between two places X and Y is 241.68 m. Two persons A and B start simultaneously at X and Y at speeds of 24.12 m/sec and 5.65 m/sec respectively. Find when they meet each other if they are travelling in same direction.
  • (i)
    11.09 sec
  • (ii)
    12.09 sec
  • (iii)
    15.09 sec
  • (iv)
    13.09 sec
  • (v)
    14.09 sec
Question 14
14.
The distance between two places X and Y is 377.88 m. Two persons A and B start simultaneously at X and Y at speeds of 20.97 m/sec and 7.41 m/sec respectively. Find when they meet each other if they are travelling in opposite direction.
  • (i)
    15.32 sec
  • (ii)
    14.32 sec
  • (iii)
    13.32 sec
  • (iv)
    12.32 sec
  • (v)
    11.32 sec
Question 15
15.
The distance between two places X and Y is 138.95 m. Two persons A and B start simultaneously at X and Y at speeds of 8.75 m/sec and 4.44 m/sec respectively. Find the meeting point away from X where they meet each other if they are travelling in same direction.
  • (i)
    284.09 m
  • (ii)
    282.09 m
  • (iii)
    283.09 m
  • (iv)
    281.09 m
  • (v)
    280.09 m
Question 16
16.
The distance between two places X and Y is 473.70 m. Two persons A and B start simultaneously at X and Y at speeds of 20.56 m/sec and 14.74 m/sec respectively. Find the meeting point away from X where they meet each other if they are travelling in opposite direction.
  • (i)
    275.90 m
  • (ii)
    276.90 m
  • (iii)
    273.90 m
  • (iv)
    277.90 m
  • (v)
    274.90 m
Question 17
17.
In a 2200 m race, A beats B by 879.98 m and C by 1289.66 m. In a 4300 m race, by how much distance does B beat C?
  • (i)
    799.75 m
  • (ii)
    801.75 m
  • (iii)
    800.75 m
  • (iv)
    802.75 m
  • (v)
    798.75 m
Question 18
18.
'P' and 'Q' are at a distance of 510.00 km apart. 'A' starts from 'P' at 07:18 AM and reaches 'Q' at 01:06 PM. 'B' starts from 'Q' at 11:51 AM and reaches 'P' at 05:49 PM. Find the distance between point P and the point where they overtake each other.
  • (i)
    456.14 km
  • (ii)
    455.14 km
  • (iii)
    454.14 km
  • (iv)
    457.14 km
  • (v)
    458.14 km
Question 19
19.
'P' and 'Q' are at a distance of 410.00 km apart. 'A' starts from 'P' at 07:10 AM and reaches 'Q' at 11:17 AM. 'B' starts from 'Q' at 10:13 AM and reaches 'P' at 06:12 PM. At what time they overtake each other?
  • (i)
    11:55 AM
  • (ii)
    09:55 AM
  • (iii)
    10:25 AM
  • (iv)
    11:25 AM
  • (v)
    10:55 AM
    Assignment Key

  •  1) (v)
  •  2) (i)
  •  3) (i)
  •  4) (iii)
  •  5) (v)
  •  6) (ii)
  •  7) (iii)
  •  8) (iv)
  •  9) (v)
  •  10) (iii)
  •  11) (ii)
  •  12) (i)
  •  13) (iv)
  •  14) (iii)
  •  15) (ii)
  •  16) (i)
  •  17) (iii)
  •  18) (i)
  •  19) (v)