Answer: 400
Step-by-step explanation:
9 hundreds is equal to the number 900.
50 tens is equal to the number 500.
900 - 500 is 400.
The answer is 400. Hope this helps!
Answer: 2
Step-by-step explanation:
N=32a+30=58b+44.
Chinese remainder theorem whould have been useful, but you won't get it. So, you've got something more complicated in there...
Well, you get numbers 30, 62, 94, 126, 158, 190, 222 etc for the first one and 44, 102, 160, 218 etc for the second one...
I just can't do without that one! :)) The main idea is that you could calculate all numbers under 3000 in both conditions: the lists only share our number (supposedly :)) )