BIHAR CGL PRE RATIO AND PROPORTION QUIZ - 25

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Question 1:

Find the fourth proportional to 12,18, 20.

Question 2:

When $x$ is subtracted from each of $18,25,28$ and $42$ , the numbers so obtained in this order are in proportion. What is the value of $\mathrm{x}$ ?

Question 3:

Seven years ago, the ratio of the ages of A and B was 5: 4. Eight years hence, the ratio of the ages of A and B will be 10 : 9. What is the sum of their present ages?

Question 4:

A box containing the denominations of one rupees coins, 2rupee coins and 5 rupee coins amount to Rs. 1872. There are equal number of coins in all denominations. How many number of coins in the box ?

Question 5:

If $2 x+1, x+2,2$ and 5 are in proportion, then what is the mean proportional between 3.5(1-x) and 8(1+x)?

Question 6:

If $11 \mathrm{~A}=13 \mathrm{~B}=17 \mathrm{C}$ then the ratio of $A: B: C$ is:

Question 7:

The sum of the three numbers is 460. If the ratio between the first and second number be $4: 7$ and that between the second and third be 6: 7, then find the second number.

Question 8:

The monthly incomes of Amit and Bandana are in the ratio $4: 5$, their expenses are in the ratio 5: 6. If ' Amit ' saves Rs. 25 per month and ' Bandana ' saves Rs.50 per month, what are their respective incomes?

Question 9:

If the number 164 is divided in the ratio 32: 9, then what will be the value of the smaller part?

Question 10:

An amount is divided among $A, B$ and $C$ in the ratio of $1: 4: 3$ respectively. If the amount received by C is Rs. 14,000 more than the amount received by A, then find the amount received by B?

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