Q16. 
Points $A$ and $B$ are both in the line segment $PQ$ and on the same side of its midpoint. $A$ divides $PQ$ in the ratio $2:3$, and $B$ divides $PQ$ in the ratio $3:4$. If $AB=2$, then the length of $PQ$ is: 
A.  70 

B.  75 

C.  80 

D.  85 
Q17. 
Three beakers have capacity of 250ml, 650ml and 200ml. 682 ml of Juice is poured into them so that the same fraction of each is filled. The volume filled in the largest beaker will be: 
A.  415 ml 

B.  403 ml 

C.  400 ml 

D.  424 ml 
Q18. 
The total surface area of a solid iron cube and a solid aluminium cuboid are the same. The length, breadth and height of the cuboid are in the ratio $1:2:4$. Both are melted together in a vessel. What is the ratio of iron and aluminium in the resultant mixture? 
A.  \((14/3)^{3/2}:8\) 

B.  \(8:(14/3)^{3/2}\) 

C.  \((3/14)^{3/2}:8\) 

D.  \(8:(3/14)^{3/2}\) 
Q19. 
The monthly salaries of two persons are in the ratio of $4:7$. If each receives an increase of Rs.25 in the salary, the ratio is altered to $3:5$. Find their respective salaries. 
A.  120 and 210 

B.  80 and 140 

C.  180 and 300 

D.  200 and 350 
Q20. 
Shyam, Gopal and Madhur are three partners in a business. Their capitals are respectively Rs 4,000, Rs 8,000 and Rs 6,000. Shyam gets $20\%$ of total profit for managing the business. The remaining profit is divided among the three in the ratio of their capitals. At the end of the year, the profit of Shyam is Rs 2200 less than the sum of the profit of Gopal and Madhur. How much profit, Madhur will get? 
A.  Rs 1600 

B.  Rs 2400 

C.  Rs 3000 

D.  Rs 5000 