Question

Q1.In Worked Example 13, Huixian did this calculation:Average speed = 40+60/2= 50 km/h How would you explain to Huixian why she is wrong?

Answer 1

Answer:

here she hi not wrong .. her calculation is right ..

Step-by-step explanation:

because

40+60=100

100 /2 =50 .

thus she is right..

you can also solve like this

40 + 60 /2

divide both numbers by 2 the add them

it will be 20 +30 =50

in this process also answer will be 50

therefore she is right..