Answer: I think it’s D
Explanation:
For number 1, it says based on the first two clues, so you would still include the even numbers ranging from 70-81. Then for number 2 we would use clue C because it gives us the most information about our number.
The 4-liter acid material was a lower concentration than 40%. Call it 4 liters of x percent acid.
4x+10*40
————— =30
X+10
Multiply all the numbers of options together, so 5x3x4 to get 60 possible outfits.
B) If we subtract females who prefer dogs from the total that prefer dogs we will know how many males prefer dogs.
290-180=110
So 110 males prefer dogs.
c) 180 females prefer dogs and 12 prefer fish, so 180+12=192 females do not prefer cats.