How many students finished the race after 1 minute?

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Q.
A stopwatch was used to time a 100-metre race run by a group of students. The sports teacher carefully recorded their times in seconds, which are presented in the table below.

Time (in seconds)

0 – 20

20 – 40

40 – 60

60 – 80

80 – 100

Number of students

8

10

13

6

3

Based on the above information, answer the following questions:

(ii) How many students finished the race after 1 minute

Solution

1 8

2 9

3 7

4 5

Ans.
(2)

Number of students who finished the race after 1 minute
= 6 + 3 = 9

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Time (in seconds)	0 – 20	20 – 40	40 – 60	60 – 80	80 – 100
Number of students	8	10	13	6	3

Solution

1 8

2 9

3 7

4 5

Ans. (2) Number of students who finished the race after 1 minute = 6 + 3 = 9

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Ans.
(2)

Number of students who finished the race after 1 minute
= 6 + 3 = 9