Question

A+B=100 A-B=60 A/B=?​

Answer 1

Step-by-step explanation:

Adding both equations we get,

A+B=100

A-B=60

+________

2A= 160

A=80

B= 20

A/B = 4

Answer 2

Answer:

4

Step - by - step explanation :

$A + \: B = 100 \: - eq1 \\ A - B = 60 - eq2 \\ \\ By \: making \: co - efficients \: equal \\ A + B = 100 \\ A - B = 60 \\ - - - - - - - \\ 2A \: \: \: \: \: \: = 160 \\ = > A = \frac{160}{2} \: = 80 \\ since \: A - B = 60 \\ = > 80 - B = 60 \\ = > - B = 60 - 80 \\ = > - B = - 20 \\ = > B = \frac{ - 20}{ - 1} \\ = > B = 20$

A = 80 , B = 20

A / B = 80/20 = 4