Qns 6:
Box A and Box D as it is the two heaviest boxes.
Qns 7:
Average score after 6 rounds------> 81
Total score------> 81 × 6
= 486
First 5 rounds of scores------> 78, 86, 82, 81 and 82
Sixth score------> 486-(78+86+82+81+82)
= 77
Qns 8:
Average speed: total distance ÷ total time taken
Total Distance travelled: Point A to Point B and back to Point A------> 6 +6 =12 m
Total Time taken------> 2h + 1h
= 3h
Average speed------> 12 ÷ 3
= 4mph
