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"Ratio and Proportion" is very important topic of Aptitude questions. This page deals with simple solved problems on Ratio and Proportion. To get a good score in BANK PO, Bank clerk, SBI Po etc examinations practicing these questions will be very useful.

1.  A sum of money is to be distributed among A, B, C, D in the proportion of $5 : 2 : 4 : 3$. If C gets Rs. 1000 more than D, what is B's share? 
A.  Rs. 500  
B.  Rs. 1500  
C.  Rs. 2000  
D.  None of these 
 Answer – (C) Solution: Let the shares of A, B, C and D be Rs. 5x, Rs. 2x, Rs. 4x and Rs. 3x respectively. 
2.  A and B together have Rs. 1210. If $4/15$ of A's amount is equal to $2/5$ of B's amount, how much amount does B have? 
A.  Rs. 460  
B.  Rs. 484  
C.  Rs. 550  
D.  Rs. 664 
 Answer – (B) Solution: ${4/15}×A = {2/5}×B$ 
3.  A sum of Rs.312 was divided among 100 boys and girls in such a way that the boy gets Rs.3.60 and each girl Rs.2.40 the number of girls is 
A.  35  
B.  40  
C.  45  
D.  50 
 Answer – (B) Solution: Step (i) Let x be the number of boys and y be the number of girls. Step (ii) A boy gets Rs. 3.60 and a girl gets Rs. 2.40 Step (iii) ⇒ Number of girls = 40 
4.  In a mixture 60 litres, the ratio of milk and water $2 : 1$. If the this ratio is to be $1 : 2$, then the quantity of water to be further added is: 
A.  20 litres  
B.  30 litres  
C.  40 litres  
D.  60 litres 
 Answer  (D) Solution: Quantity of milk $= (60 × {2/3})$ litres $= 40$ litres. Let quantity of water to be added further be x litres. Now, $(40/{20 + x }) = 1/2 $ 
5.  Two numbers are respectively 20% and 50% more than a third number. The ratio of the two numbers is: 
A.  $2 : 5 $  
B.  $3 : 5$  
C.  $4 : 5 $  
D.  $5 : 4$ 
 Answer – (C) Solution: Let the third number be x. Then, first number $= 120%$ of $x = {120x}/100 = {6x}/ 5$ 
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