Thaddeus's answer to Ethan's Secondary 1 Maths Singapore question.
But the answer is 37.9km/h
Distance = 180 (to and from ie: 90×2)
Average speed
= 180÷4.75
= 37.8947368421
≈ 37.9 km/h
Average speed
= 180÷4.75
= 37.8947368421
≈ 37.9 km/h
Thank you :)
360 Tutoring Program