In a 25 m swimming competition, the time taken by 5 swimmers A, B, C,

1.	In a 25 m swimming competition, the time taken by 5 swimmers A, B, C, D and E are 15.7 seconds, 15.68 seconds, 15.6 seconds, 15.74 seconds and 15.67 seconds respectively. Identify the winner.
Answer» The winner is one who took less time for swimming 25 m. Comparing the time taken by A, B, C, D, E the whole number part is equal for all participants. Comparing digit in tenths place we get 6 < 7. ∴ Comparing 15.68, 15.6, 15.67, that is comparing the digits in hundredths place we get 15.60 < 15.67 < 15.68 One who took 15.6 seconds is the winner. ∴ C is the winner.

In a 25 m swimming competition, the time taken by 5 swimmers A, B, C, D and E are 15.7 seconds, 15.68 seconds, 15.6 seconds, 15.74 seconds and 15.67 seconds respectively. Identify the winner.

Answer»

The winner is one who took less time for swimming 25 m.

Comparing the time taken by A, B, C, D, E the whole number part is equal for all participants.

Comparing digit in tenths place we get 6 < 7.

∴ Comparing 15.68, 15.6, 15.67, that is comparing the digits in hundredths place we get

15.60 < 15.67 < 15.68

One who took 15.6 seconds is the winner.

∴ C is the winner.