Ratio and Proportion Questions Quiz 4 For IBPS Clerk Pre, SBI Clerk Pre and IBPS RRB

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Direction : Read the following questions carefully and choose the right answer.
1
Anmol had 10 paise, 25 paise and 50 paise coins in the ratio of 10 : 8 :  9 respectively. After giving Rs. 20 his mother he has Rs. 40. How many 50 paise coins did he have?
» Explain it
A
Total money = 20 + 40 = 60

In this question the total money is given so we need to multiply the value of the coins in the ratio.

10 × 0.10 x + 8 × 0.25x + 9 × 0.50x = 60

x + 2x + 4.5x = 60

7.5 x = 60

x = 8

Number of 50 paise coins = 9 × 8 = 72

Hence, option A is correct.


2
Three numbers A, B and C are in the ratio of 12 : 15 : 25. If sum of these numbers is 312, ratio between the difference of B and A and the difference of C and B is –
» Explain it
C
Let the number A, B and C be 12a , 15a and 25a respectively

Then from the question 12a + 15a + 25a  =   312

⇒ a =  312  = 6
52

⇒ required ratio =  15 × 6 – 12 × 6
25 × 6 – 15 × 6

3  = 3 10
10


Hence, option C is correct.
3
The ratio of Nicotine to Heroine in four types of drugs of equal quantity is 2 : 3, 3 : 7, 4: 11 and 11 :9 respectively. The four drugs are mixed together. What is the ratio of Nicotine to Heroine after mixing?
» Explain it
C
Let the quantity of each drugs be ‘a’

Then quantity of nicotine after mixing is

  ( 2  +  3  +  4  +  11 ) a
5 10 15 20

( 2 × 12 + 3 × 6 + 4 × 4 + 11 × 3 ) a
60

( 91 ) a
60

and quantity of heroine after mixing is

  ( 3  +  7  +  11  +  9 )  a
5 10 15 20

( 3 × 12 + 7 × 6 +11× 4 + 9 × 3 a
60

( 149 )  a
60

⇒ required ratio of nicotine to heroine after mixing

 = 
( 91 ) a
60
 = 91 : 149
( 149 ) a
60


Hence, option (C) is correct.
4
Out of three positive numbers, the ratio of the first and the second numbers is 3 : 4 that of the second and the third numbers is 5 : 6 if the product of the second and the third numbers is 4320. What is the sum of three numbers?
» Explain it
A
Ratio of 1st and 2nd numbers = 3 : 4

Ratio of 2nd and 3rd numbers = 5 : 6

Let the 2nd number = 5x, third number = 6x

Product of 2nd and 3rd numbers = 4320

5x × 6x = 4320

x2 = 144

x = 12

2nd number = 60, 3rd number = 72,

1st number =  60  × 3 = 45
4

Sum of three numbers = 60 + 72 + 45 = 177

Hence, option A is correct.
5
The cost price of 2 shirts and 3 jeans is Rs. 2200 and the cost price of 2 jeans and 4 shirts is Rs. 2400. Find the ratio between the cost price of the jeans and the shirt.
» Explain it
B
Let the cost price of one shirt = x Rs., the cost price of one jeans = y Rs.
 
According to the question,
 
2x + 3y = 2200 ....1
 
2y + 4x = 2400
 
2x + y = 1200 ....2
 
After solving these 2 equation,
 
x = 350 Rs. , y = 500 Rs.
 
Ratio = 500 : 350 = 10 : 7

Hence, option B is correct.


Ratio and proportion
concept is one of the most important parts of word problems, in each exam bank exams around 1 to 2 questions has been seen.  If you are aware about tricks and short cuts of ratio and proportion you can easily solve world problems within a minute.
Ratio, Proportion and Variation form an interesting chapter. The basic fundamentals of this chapter are extensively used in solving many questions in chapters like time and work, time and distance. You are likely to find the quite a few questions in the actual exams, based on these concepts
Here first we will discuss about, “what is ratio”

The comparison between two quantities of the same kind of units. Two of different kinds can’t be compared. Thus, there is no relation between rupees and 20 men. The ratio of a and b is usually written as a : b or a/b.

Ratio and Proportion questions asked in SBI Clerk Pre, IBPS Clerk Pre, IBPS RRB Pre, IBPS RRB Office Assistant Pre, IBPS RRB Scale 1 Pre, IBPS RRB Office Assistant Mains, IBPS RRB Scale 1 Mains, IBPS PO Pre, IBPS SO Pre, IBPS PO, SBI PO Pre, SBI SO Pre, SBI PO, LIC, NIACL, OICAL, CLAT, MAT, NIFT, CTET etc.

In this above quiz you will practice of 10 Ratio and Proportion questions with detailed solution, you will also get to know about how to solve ration and proportion questions fast by using tricks and shortcuts at free of cost.

You can also practice how to solve time and work questions with the help of ration and proportion concept. Here at Smartkeeda you will practice unlimited problems of ratio and proportion with quality solution.

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