Xiaoping's home is on the sixth floor, and the height from the floor to the ground is actually the total height of the five floors below. First calculate the average height of each floor, and then multiply it by 5, and you can get the answer. Therefore, the calculation formula is

42÷ 15×5= 14 (m)

The answer is 14m.

Question 2:

One third was entered within 3 hours. Then, first of all, the number of entries per hour is 1/3 ÷ 3 = 1/9.

It took 8 hours to enter, and the number of entries was 8 × 1/9 = 8/9.

The remaining workload is the total workload of 1 minus the completed workload, that is, 1-8/9 = 1/9.

(1/9 and 8/9 are one-ninth and one-eighth respectively)

The answer is that eight out of nine have entered, and one out of nine is left.

Question 3:

First, find out how many bags can be packed in a total of ***240 kilograms of fruit, that is, 240 ÷ 1/4 = 960 (bags).

Three quarters of the bags have been completed, so the number of bags that have been filled is 960 × 3/4 = 720 (bags).

The answer is that 720 bags are full.