Page 51 - Arithmetic

5. Distance covered in 1 hour 10 minutes or 11 = 54 × 7 = 63 miles 66
Time taken by Travis to cover the remaining distance = 319−63 = 32 hours or 62 hours or 6 hours 405 5
24 minutes.
Total time taken by Travis to reach college = 1 hour 10 minutes + 6 hours 24 minutes = 7 hours 34 minute
So, he will reach his college at 12:24 a.m.
6. Relative speed of the two friends = 5 + 7 = 12 rounds per hour
So, they will cross each other 12 times in an hour and 6 times in half an hour. Therefore, they will cross each other 18 times before 11.00 a.m.
7. Total distance = 120 + 80 + 500 = 700 miles
Total time taken to cover the distance = 120 + 80 + 500 = 22
Average speed = 700 × 3 = 1050 miles per hour or 95 5 miles per hour 22 11 11
40 30 300 3
Page 50 of 55
Arithmetic Concept