3
Q:
A) 6000 | B) 7000 |
C) 5000 | D) 8000 |
Answer: A) 6000
Explanation:
Explanation:
Ans.
Let B’s investment = x rs.
∴ A’s investment =( x + 1200) rs.
Ratio of the profits of A and B = (x+1200)*(15+4):x*15 = {19(x+1200)}:15x
Now,let the total profit of A =y
∴ total profit of B = (y-280)
But total profit = 1240
⇒y+(y-280)=1240
⇒2y=1520
⇒y= 760
∴profit of A = 760rs.
Profit of B = 760-280=480 rs.
Ratio of profits= 760:480 = 19:12
According to the question,
19(x+1200)/15x = 19/12
12x+14400 = 15x
⇒3x = 14400
⇒x = 4800 rs.
⇒investment of A = 4800+1200
= 6000 rs.