# BIHAR CGL PRE RATIO AND PROPORTION - 12

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## Question 1:

There is ratio of 5:4 between two numbers. If 40 percent of the first is 12 , then 50% of the second number is:

## Question 2:

60 liters of diesel is required to travel $600 \mathrm{~km}$ using an $800 \mathrm{cc}$ engine. If the volume of diesel required to cover a distance varies directly as the capacity of the engine, then how many liters of diesel is required to travel $800 \mathrm{kms}$ using $1200 \mathrm{cc}$ engine?

## Question 3:

The proportion of milk and water in 3 samples is 2: 1,3:2 and 5: 3. A mixture comprising of equal quantities of all 3 samples is made. The proportion of milk and water in the mixture is.

## Question 4:

The ratio of marks obtained by Vinod and Basu is $6: 5$. If the combined average of their percentage is $68.75$ and their sum of the marks is 275 , find the total marks for which exam was conducted.

## Question 5:

The initial ratio of sugar and flour in a food item was $17: 28$. Elizabeth added so much flour to this $27 \mathrm{~kg}$ food that the ratio of sugar and flour becomes $2: 5$. How much flour did Elizabeth add later?

## Question 6:

The ratio of the present ages of father and son is $2:1$, the product of their ages is 200, what will be the ratio of their ages after 5 years?

## Question 7:

₹ 5,100 was distributed among $A$ and $B$ in the ratio $8: 9$. By how much is B's share more than A's share?

## Question 8:

If 264 is divided in the ratio 31 : 13 then what is the value of the smaller part?

## Question 9:

If a rope 154 meters long is divided in the ratio 9:5, then what will be the length (in metres) of the shorter piece?

## Question 10:

If $x: 4:: y: 5$, then $x: y$ will be :