Answer:
The difference between the sums of the 20 largest and 20 smallest two-digit numbers is 1400
Explanation:
20 largest two digit numbers are:
(80+81+82+83+84,...,+99)
20 smallest two digit numbers are:
(10+11+12+13+14,...,+29)
Now we have to find the difference between the sums of the 20 largest and 20 smallest two-digit numbers
= (80+81+82+83+84,...,+99) - (10+11+12+13+14,...,+29)
= 1790 - 390
= 1400
Thus the difference between the sums of the 20 largest and 20 smallest two-digit numbers is 1400....