Since he traveled 8 km North initially and then 8 km South finally, he returns to the same latitude (horizontal level). His last move, 15 km to the West, determines his final displacement from his school.
| Direction | Distance traveled from initial point |
|---|---|
| North | 8 km |
| West | 15 km |
| South | 8 km |
Identify the part of the sentence that contains a grammatical error:
Each of the boys have submitted their assignment on time.
Rearrange the following parts to form a meaningful and grammatically correct sentence:
P. a healthy diet and regular exercise
Q. are important habits
R. that help maintain good physical and mental health
S. especially in today's busy world