A=4000, B=80, C=24
Explanation:
I think this question is not clear enough, see attachment for the correct question.
We know the height of mountain P to be 1086feet and mountain Q is four times the height of mountain P.
Simple arithmetic will say hieght of mountain Q = 4 * 1086 = 4344feet.
Now using the area model:
We have the fact that Mountain Q is 4 times the height of Mountain P. That's the "4" we have in the left side of our model. It's like having a multiplication table, next to the "4" we have "A" and upper this we have "1000", the only thing we have to do is multiply 4 x 1000 = 4000.
Next to A we have 320 which is as a result of letter B above it multipled by 4 i.e B * 4 = 320, therefore B = 320/4 = 80.
The last letter next to 320 we have is C, and is below a "6", to get our C we multiple 6*4 = 24.
In summary
A = 4 x 1000 = 4000.
B = 320/4 = 80.
C = 6 x 4 = 24.
Hieght of Mountain Q:
A + 320 + c = 4344 (4 times the height of Mountain P).
Height of Mountain P:
1000 + B + 6 = 1086