Ques:- Two trains are coming from opposite directions with speeds of 75 km/hr and 100 km/hr on two parallel tracks. At some moment the distance between them is 100 km. After T hours, distance between them is again 100 km. T is equal to
A. 1 hr
B. $$1{1} / {7}$$
C. $$1{1} / {2}$$
D. 2 hrs
Ques:- A and B started a business jointly. A’s investment was thrice the investment of B and the period of his investment was two times the period of investment of B. if B received Rs. 4000 as profit, then their total profit is
A. Rs. 16,000
B. Rs. 24,000
C. Rs. 28,000
D. Rs. 32,000
Ques:- A, B and C enter into a partnership. A initially invests Rs.25 lakhs and adds another Rs.10 lakhs after one year. B initially invests Rs.35 lakhs and withdraws Rs.10 lakhs after 2 years and C invests Rs.30 lakhs. In what ratio should the profit be divided at the end of 3 years?
A. 10 : 10 : 9
B. 19 : 19 : 18.
C. 20 : 19 : 18
D. 20 : 20 : 19