A invested $400 in a business after 6 months B invested $200 in the business. End of the year if they got $100 as profit. Find A shares?
Select the correct option
A) $100
B) $75
C) $20
D) $120
E) $80
A:B = 400*12:200*6   A:B = 4:1   A's share = 100*4/5= 
<gadget id="calculator">100*4/5</gadget>
<output>80</output>
$80   Answer is $80
<result>E</result>
A invested $400 in a business after 6 months B invested $200 in the business. End of the year if they got $100 as profit. Find A shares?