What is 1/10 the value of the 4 in 12.45

Question

At the track meet  Ervin wins the 100 meter dash with  the time 12.45 Landon finishes  second. Landon time contains a 4 with  a value that is 1/10 the value of 4 in Ervin time. What could be Landons time in the 100 meter dash?

Answer 1

1/10 of .4 = 0.1(0.4) = 0.04

 

Since Landon's time is longer than Ervin's (Ervin won, Landon was 2nd) and

his time has a 4 two spots behind the decimal, his time could be 12.54 seconds

or any other number close to but > 12.45 that has a 4 in the hundredths spot.

 

12.54

12.64

12.74

12.84

12.94

13.04

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