30 athletes participated in a 100-meter race. The time taken (in seconds) by them to complete the race is shown in the tally table. Time (in seconds) Tally marks 10 || 11 |||| 12 |||| |||| | 13 |||| | 14 |||| || How many athletes completed the race in 12 seconds?

30 athletes participated in a 100-meter race. The time taken (in seconds) by them to complete the race is shown in the tally table. Time (in seconds) Tally marks 10 || 11 |||| 12 |||| |||| | 13 |||| | 14 |||| || How many athletes completed the race in 12 seconds? Correct Answer 11

Concept used:

In the tally, | → 1, || → 2, ||| →  3, |||| → 4 and |||| → 5

Calculation:

By observing the above tally table,

The number of athletes completed the race in 12 seconds = 5 + 5 + 1 = 11

∴ 11 athletes completed the race in 12 seconds