A and B together invested Rs.12000 in a business, if the ratio of investment of A to that of B is 1:2, find the investment of A.
Rs.3000
Rs.6000
Rs.8000
Rs.7000
Rs.4000
Let the investment of A be x
Investment of B is 2x
Total investment = 3x
3x =12000
x= Rs.4000
If A and B together invest Rs. 12,000 in a business such that A's investment is thrice that of B. The investment of A is -
A and B start a business such that their initial investment is Rs. 3000 and Rs.4000 respectively. C joins them after 7 months by investing some amount. After one year the ratio of profit share of B to that of C is 8:5. Find the ratio of the investment of A to that of C.