Ques:- Gold is 19 times as heavy as water and copper is 9 times. In what ratio should these metals be mixed so that the mixture may be 15 times as heavy as water?
A. 2 : 1
B. 3 : 2
C. 4 : 3
D. 5 : 4
Ques:- A and B enter into a partnership for a year. A contributes Rs.1500 and B Rs.2000. After 4 months, they admit C, who contributes Rs.2250. If B withdraws his contribution after 9 months, how would they share a profit of Rs.900 at the end of the year?
A. 1 : 1 : 1
B. 1 : 2 : 3
C. 6 : 8 : 9
D. 8 : 6 : 9