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Simple Speed Question: Determine the speed distance and time

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Interval Problems

Question 1 of 12

60 pots of flowers line a square pond at 4-metre intervals. Find the length of one side of the pond.

20m

40m

60m

80m

None of the above

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$Answer Image$

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60m

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Flags are planted along a bridge at 5-metre intervals, including both ends. Find the length of the bridge if 20 flags are planted in all.

93m

95m

97m

99m

None of the above

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95m

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20 – 1 = 19 intervals
19 $\times$ 5 = 95m

Marcus was exercising at 15-minute intervals, during which he would run, swim and do push-ups. He did his first set of intervals at 6:30 pm and planned to do a total of 7 sets. What time would he be completing all 7 sets, if he took a break of 5 minutes between each set?

7:45pm

7:50pm

8:45pm

8:50pm

None of the above

Sorry. Please check the correct answer below.

15 + 5 = 20 minutes
20 $\times$ 6 = 135 minutes
= 2h 15 minutes
2h 15 minutes 1fter 6:30pm = 8:45pm

View Correct Answer

8:45pm

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15 + 5 = 20 minutes
20 $\times$ 6 = 135 minutes
= 2h 15 minutes
2h 15 minutes 1fter 6:30pm = 8:45pm

Jackson’s school’s compound is in the shape of a rectangle with length 140 m and breadth 112m. An oak tree is planted at 7-metre intervals. There are 2 pinewood trees between every 2 oak trees. Were there more pinewood or oak trees and by how many more?

pinewood, 73 more

pinewood, 76 more

pinewood, 79 more

pinewood, 80 more

None of the above

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pinewood, 76 more

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21 students queued in a row. The distance between every 2 students was 30 cm. How long is the queue in metres?

12m

None of the above

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21 – 1 = 20 intervals
20 $\times$ 30 = 6m

View Correct Answer

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21 – 1 = 20 intervals
20 $\times$ 30 = 6m

There is a total of 72 students in the school hall. They form up into 9 equal rows. The distance between every 2 soldiers is 25 cm. How long is each row in metres?

1.25m

1.5m

1.75m

2.00m

None of the above

Sorry. Please check the correct answer below.

72 $\div$ 9 = 8 soldiers
8 – 7 = 7 intervals
7 $\times$ 25 = 175 cm
1.75m

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1.75m

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72 $\div$ 9 = 8 soldiers
8 – 7 = 7 intervals
7 $\times$ 25 = 175 cm
1.75m

Uncle Tony took four and a half minutes to cycle from the first lamppost to the 10$^{th}$ lamppost. Which lamppost would he have cycled pass after another 9 minutes?

26$^{th}$ lamppost

28$^{th}$ lamppost

30$^{th}$ lamppost

32$^{nd}$ lamppost

None of the above

Sorry. Please check the correct answer below.

1$^{st}$ to 10$^{th}$ lamppost $\longrightarrow$ 9 intervals
9 intervals $\longrightarrow$ 4.5 mins
1 interval $\longrightarrow$ 4.5 $\div$ 9 = 0.5 mins
1 min $\longrightarrow$ 1 $\times$ 2 = intervals
9 min $\longrightarrow$ 2 $\times$ 9 = 18 intervals
10 + 18 = 28$^{th}$ lamppost

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28$^{th}$ lamppost

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A grandfather clock chimes 3 times in 4 seconds. How many seconds will it take to chime 10 times?

12 seconds

14 seconds

16 seconds

18 seconds

None of the above

Sorry. Please check the correct answer below.

3 times, 2 intervals.
1 interval $\longrightarrow$ 4 $\div$ 2 = 2 seconds
10 times, 9 intervals
9 intervals $\longrightarrow$ 2 $\times$ 9 = 18 seconds

View Correct Answer

18 seconds

You are Right

3 times, 2 intervals.
1 interval $\longrightarrow$ 4 $\div$ 2 = 2 seconds
10 times, 9 intervals
9 intervals $\longrightarrow$ 2 $\times$ 9 = 18 seconds

The circumference of a circular garden is 30 m. A red flag is planted at fixed intervals of 3 m. A blue flag is planted between every 2 red flags. How many flags were planted altogether?

15 flags

20 flags

25 flags

30 flags

None of the above

Sorry. Please check the correct answer below.

30 $\div$ 3 = 10 intervals $\longrightarrow$ 10 red flags
10 $\times$ 1 – 10 blue flags
10 + 10 = 20 flags, were planted

View Correct Answer

20 flags

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30 $\div$ 3 = 10 intervals $\longrightarrow$ 10 red flags
10 $\times$ 1 – 10 blue flags
10 + 10 = 20 flags, were planted

Charmaine used some pebbles to form a square. There is a total of 16 pebbles on each side of the square. How many pebbles did she use altogether?

58m

59m

60m

61m

None of the above

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$Answer Image$

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60m

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$Answer Image$

It took Uncle Jim 30 minutes to drive from the first exit to the 6$^{th}$ exit of an expressway. The exits of that expressway were spaced apart equally. Which exit would he have passed by after one hour?

11$^{th}$ exit

12$^{th}$ exit

13$^{th}$ exit

14$^{th}$ exit

None of the above

Sorry. Please check the correct answer below.

1$^{st}$ to 6$^{th}$ exit $\longrightarrow$ 5 intervals
5 intervals $\longrightarrow$ 30 mins
1 interval $\longrightarrow$ 30 $\div$ 5 – 6 mins
60 $\div$ 6 = 10 intervals
1 + 10 = 11$^{th}$ exit

View Correct Answer

11$^{th}$ exit

You are Right

1$^{st}$ to 6$^{th}$ exit $\longrightarrow$ 5 intervals
5 intervals $\longrightarrow$ 30 mins
1 interval $\longrightarrow$ 30 $\div$ 5 – 6 mins
60 $\div$ 6 = 10 intervals
1 + 10 = 11$^{th}$ exit

Maxine and Alia were running up a staircase, at constant speeds. When Alia was at the 7$^{th}$ floor, Maxine just arrived on the 4$^{rd}$ floor. On which floor will Maxine be when Alia reaches the 13$^{th}$ floor?

6$^{th}$ floor

7$^{th}$ floor

8$^{th}$ floor

9$^{th}$ floor

None of the above

Sorry. Please check the correct answer below.

1$^{st}$ to 7$^{th}$ floor $\longrightarrow$ 6 intervals
1$^{st}$ to 4$^{th}$ floor $\longrightarrow$ 3 intervals
Thus, Alia was twice as fast as Maxine.
1$^{st}$ to 13$^{th}$ floor $\longrightarrow$ 12 intervals
12 $\div$ 2 = 6 intervals
6 intervals $\longrightarrow$ 1$^{st}$ to 7$^{th}$ floor
Ans: 7$^{th}$ floor

View Correct Answer

7$^{th}$ floor

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