Advanced Mathematics Primary 3 Time

Alexa times three laps around a track. Lap 1 takes 1 minute 52 seconds. Lap 2 takes 2 minutes 9 seconds. Lap 3 takes 58 seconds. What is her total time in minutes and seconds?

A 3 minutes 59 seconds
B 4 minutes 49 seconds
C 4 minutes 59 seconds
D 5 minutes
Show Worked Solution

Worked Solution

Step 1: Convert all lap times to seconds. Lap 1: 1 × 60 + 52 = 112 s. Lap 2: 2 × 60 + 9 = 129 s. Lap 3: 58 s. Step 2: Add all seconds. 112 + 129 + 58 = 299 seconds. Step 3: Convert back to minutes and seconds. 299 ÷ 60 = 4 remainder 59. So 4 minutes 59 seconds. Answer: 4 minutes 59 seconds

Correct answer: 4 minutes 59 seconds

Want more questions like this? Superholic Lab has 10,000+ MOE-aligned questions with full worked solutions.

Start Free Trial — 7 Days Free