The key information here is the time he took to run the race - 420 seconds
We know that there are 60 seconds in 1 minute so to find the number of minutes we divide 420 by 60 to get 7.
Murad took 7 minutes to run the race
10 grapefruit in each box. If the grower shipped 20,400 boxes. You would have to multiply to find out the total number of grapefruit.
20,400 boxes times 10 in each box.
20,400 x 10 = 204,000
204,000 grapefruit were shipped.
Hope this helps. :)
X = 360 - (158 + 148 + 32)
x = 360 - 338
x = 22