A taxi travels for 126 km from Seremban taxi station at 9:15 morning and reach the Shah Alam taxi station at 10:45 morning. Calculate the average speed, in km h, of the whole journey of the taxi.​

Given:

Taxi travels for 126 km.

Starting time = 9:15

Reaching time = 10:45

To find:

The average speed, in km/h.

Solution:

We have,

Distance = 126 km

Time = 9:15 to 10:45

        = 1 hour 30 minutes

        = 1.5 hour                        [1 hour = 60 minutes]

We know that,

Therefore, the average speed to the taxi is 84 km/h.

If the interst rate is 2% per year and she paid it back after 3 years , it means she paid an extra 6% of $2000 just in interests.

Now we just need to find how much 6% is and add to 2000.

to discover the value of 6% of 2000 we can divide it by 100 ( to find 1%) and then multiply it by 6 ( to find 6%) :

2000 ÷ 100 = 20
1% = 20
6% = 20 × 6
6% = 120

Now add 120 to 2000 to find out how much she paid in total:
2000 + 120 = 2120

Awnser : She paid the total of $2120 over 3 years

I hope you understood my brief explanation. And please consider marking this awnser as Branliest. Thank you ! :)