Unit 3 · Measurement and Data

1850 on the Watch — What Time 15 Min Later?

Lesson 5 of 13

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About this lesson

1850 in 24-hour time means 18 hours 50 minutes. Since 18 − 12 = 6, this is 6:50 pm. Adding a quarter hour (15 minutes) gives 7:05 pm.

Chapters

0:00Introduction
0:22The Question
0:56Decoding "one quarter of an hour"
1:21Adding the time interval
1:50Converting to 12-hour format
2:16Exam strategy — the base-10 arithmetic pitfall
2:52Confirming the final option

Question

Sandy’s watch reads 1850.

What is the time one quarter of an hour later, in 12-hour format?

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1850 on the Watch — What Time 15 Min Later? | Measurement and Data | GoTestPrep