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 136.00 m travelling at a speed of 6.67 m/sec will cross another train B of length 175.22 m travelling in the same direction at a speed of 4.32 m/sec?
  • (i)
    132.43 sec
  • (ii)
    131.43 sec
  • (iii)
    130.43 sec
  • (iv)
    134.43 sec
  • (v)
    133.43 sec
Question 2
2.
In how much time will a train A of length 381.39 m travelling at a speed of 20.01 m/sec will cross another train B of length 459.79 m travelling in the opposite direction at a speed of 11.57 m/sec?
  • (i)
    24.64 sec
  • (ii)
    26.64 sec
  • (iii)
    28.64 sec
  • (iv)
    27.64 sec
  • (v)
    25.64 sec
Question 3
3.
In how much time will a train of length 178.56 m travelling at a speed of 7.75 m/sec crosses a man riding a cycle in the same direction at a speed of 2.74 m/sec?
  • (i)
    35.64 sec
  • (ii)
    33.64 sec
  • (iii)
    37.64 sec
  • (iv)
    34.64 sec
  • (v)
    36.64 sec
Question 4
4.
In how much time will a train of length 446.05 m travelling at a speed of 18.57 m/sec crosses a man riding a cycle in the opposite direction at a speed of 13.05 m/sec?
  • (i)
    13.11 sec
  • (ii)
    12.11 sec
  • (iii)
    16.11 sec
  • (iv)
    14.11 sec
  • (v)
    15.11 sec
Question 5
5.
A motor boat can move at a speed of 14.62 m/sec in still water. If it goes upstream for 197.48 sec, it travels a distance of 1803.00 m. What is the speed of the stream?
  • (i)
    7.49 m/sec
  • (ii)
    4.49 m/sec
  • (iii)
    5.49 m/sec
  • (iv)
    3.49 m/sec
  • (v)
    6.49 m/sec
Question 6
6.
A motor boat can move at a speed of 12.92 m/sec in still water. If it goes downstream for 186.50 sec, it travels a distance of 4019.00 m. What is the speed of the stream?
  • (i)
    8.63 m/sec
  • (ii)
    6.63 m/sec
  • (iii)
    9.63 m/sec
  • (iv)
    10.63 m/sec
  • (v)
    7.63 m/sec
Question 7
7.
A motor boat can travel at a speed of 14.63 m/sec downstream and 9.59 m/sec upstream. What is the speed of the motor boat in still water?
  • (i)
    14.11 m/sec
  • (ii)
    13.11 m/sec
  • (iii)
    12.11 m/sec
  • (iv)
    10.11 m/sec
  • (v)
    11.11 m/sec
Question 8
8.
A motor boat can travel at a speed of 13.63 m/sec downstream and 1.69 m/sec upstream. What is the speed of the stream?
  • (i)
    7.97 m/sec
  • (ii)
    3.97 m/sec
  • (iii)
    4.97 m/sec
  • (iv)
    5.97 m/sec
  • (v)
    6.97 m/sec
Question 9
9.
A motor boat can travel at a speed of 14.37 m/sec downstream and 3.17 m/sec upstream. How much distance can the boat travel in 46.19 sec in still water?
  • (i)
    404.09 m
  • (ii)
    405.09 m
  • (iii)
    406.09 m
  • (iv)
    403.09 m
  • (v)
    407.09 m
Question 10
10.
A motor boat can travel at a speed of 10.69 m/sec downstream and 4.85 m/sec upstream. How much time will it take to cross a distance of 267.13 m in still water?
  • (i)
    35.38 sec
  • (ii)
    33.38 sec
  • (iii)
    32.38 sec
  • (iv)
    36.38 sec
  • (v)
    34.38 sec
Question 11
11.
The speed of a motor boat is 12.89 m/sec and the speed of a stream is 3.91 m/sec. A & B are two location adjacent to a stream. If it takes 236.16 sec to go from point A to B and come back, What is the distance between A and B?
  • (i)
    1381.00 m
  • (ii)
    1383.00 m
  • (iii)
    1380.00 m
  • (iv)
    1382.00 m
  • (v)
    1384.00 m
Question 12
12.
The speed of a motor boat is 9.90 m/sec and the speed of a stream is 4.90 m/sec. A & B are two location adjacent to a stream. If the distance between A and B is 4134.00 m, how much time will it take to go from A to B and back to A?
  • (i)
    1106.12 sec
  • (ii)
    1104.12 sec
  • (iii)
    1105.12 sec
  • (iv)
    1107.12 sec
  • (v)
    1108.12 sec
Question 13
13.
The distance between two places X and Y is 107.69 m. Two persons A and B start simultaneously at X and Y at speeds of 3.82 m/sec and 2.59 m/sec respectively. Find when they meet each other if they are travelling in same direction.
  • (i)
    89.55 sec
  • (ii)
    85.55 sec
  • (iii)
    88.55 sec
  • (iv)
    87.55 sec
  • (v)
    86.55 sec
Question 14
14.
The distance between two places X and Y is 338.16 m. Two persons A and B start simultaneously at X and Y at speeds of 19.81 m/sec and 11.14 m/sec respectively. Find when they meet each other if they are travelling in opposite direction.
  • (i)
    12.93 sec
  • (ii)
    10.93 sec
  • (iii)
    11.93 sec
  • (iv)
    8.93 sec
  • (v)
    9.93 sec
Question 15
15.
The distance between two places X and Y is 427.44 m. Two persons A and B start simultaneously at X and Y at speeds of 31.36 m/sec and 29.00 m/sec respectively. Find the meeting point away from X where they meet each other if they are travelling in same direction.
  • (i)
    5678.88 m
  • (ii)
    5677.88 m
  • (iii)
    5681.88 m
  • (iv)
    5680.88 m
  • (v)
    5679.88 m
Question 16
16.
The distance between two places X and Y is 394.80 m. Two persons A and B start simultaneously at X and Y at speeds of 27.96 m/sec and 8.32 m/sec respectively. Find the meeting point away from X where they meet each other if they are travelling in opposite direction.
  • (i)
    306.26 m
  • (ii)
    302.26 m
  • (iii)
    304.26 m
  • (iv)
    303.26 m
  • (v)
    305.26 m
Question 17
17.
In a 1300 m race, A beats B by 169.60 m and C by 535.20 m. In a 5000 m race, by how much distance does B beat C?
  • (i)
    1407.15 m
  • (ii)
    1406.15 m
  • (iii)
    1404.15 m
  • (iv)
    1408.15 m
  • (v)
    1405.15 m
Question 18
18.
'P' and 'Q' are at a distance of 490.00 km apart. 'A' starts from 'P' at 07:31 AM and reaches 'Q' at 03:17 PM. 'B' starts from 'Q' at 10:53 AM and reaches 'P' at 06:46 PM. Find the distance between point P and the point where they overtake each other.
  • (i)
    350.57 km
  • (ii)
    352.57 km
  • (iii)
    353.57 km
  • (iv)
    354.57 km
  • (v)
    351.57 km
Question 19
19.
'P' and 'Q' are at a distance of 410.00 km apart. 'A' starts from 'P' at 08:01 AM and reaches 'Q' at 02:32 PM. 'B' starts from 'Q' at 10:51 AM and reaches 'P' at 06:49 PM. At what time they overtake each other?
  • (i)
    00:53 PM
  • (ii)
    00:23 PM
  • (iii)
    01:53 PM
  • (iv)
    11:53 AM
  • (v)
    01:23 PM
    Assignment Key

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