Quantitative Aptitude Questions and Answers for LIC AAO 2019 and Take Maths Test with Explanation with Free PDF at Smartkeeda

Directions: Read the following questions carefully and choose the right answer.
Important for :
1
A sum of money becomes 5 times of itself in 25 years at simple interest. If Rs. 12500 was invested at the same rate of interest for two years, compounded annually then what would have been the compound interest?
» Explain it
A
Let the sum of money = x then interest = 5x – x = 4x

SI =  P × R × T  , 4x =  X × R × 25  , R = 16%
100 100

CI on Rs. 12500 for 2 years @ 16% per annum
= 12500  ( 1 + 16 ) 2  – 12500 = 4320
100  

Hence, option A is correct.
2
Two persons, A and B can complete a piece of work in 21 days and the respective ratio of A’s and B’s efficiency is 2: 1. If A work at 37.5% more than his efficiency and B work at 25% less than his efficiency then in how many days can they complete the same piece of work?
» Explain it
E
Let the efficiency of A = 2x and the efficiency of B = x
 
A and B complete a piece of work in 21 days then the total units of work = (2x + x) × 21 units = 3x × 21 units 
 
If A work at 37.5% more than his efficiency then A efficiency will become (100 + 37.5)% of 2x = 2.75x 
 
If B works 25% less than his efficiency then his efficiency will become 75% of x = 0.75x 
 
If they work together then the total units of work in one day = (2.75x + 0.75x) = 3.5x 
 
The total time taken by them to do 3x × 21 units of work

= 3x ×  21  = 18 days
3.5

Hence, option E is correct.
3
Four Onion and four potato are kept in a box. A boy picks out two things from the box at random. Find the probability that one is Onion and another one is Potato?
» Explain it
D
Total probability = 8C2 = 28
 
Probability that one is Onion and another one is Potato = 4C1 × 4C1 = 16 
 
Hence, reqd. probability =  16  =  4
28 7

Therefore, option D is correct.
4
The average weight of 10 persons was increased by 2.5 kg when Ram comes in place of Mohan but if Sohan comes in place of Mohan then the average weight of the 10 persons was increased by 3.5 kg. If the weight of Mohan is 55 kg then what is the average weight of Ram, Mohan, and Sohan?
» Explain it
C
Let the average weight of 10 persons is x kg 
 
Then the sum of the weight of 10 persons = 10x kg 
 
Let the Ram’s weight is R and Sohan’s weight is S then 
 
Case I: When Ram comes in place of Mohan
 
10x – 55 + R = 10(x + 2.5) 
 
R  = 10 × 2.5 + 55 = 25 + 55 = 80 kg
 
Case II: When Sohan comes in place of Mohan 
 
10x – 55 + S = 10(x + 3.5) 
 
S = 35 + 55 = 90 kg 
 
The average weight of Ram, Mohan, and Sohan

80 + 55 + 90  =  225  = 75 kg
3 3

Hence, option C is correct.
5
Mohan, Sohan and Sunil enter into a partnership with a capital in which Mohan's contribution is Rs. 17400. If out of a total profit of Rs. 1500, Mohan gets Rs. 750 and Sohan gets Rs. 500, then Sohan's capital is?
» Explain it
A
Ratio of profit of Mohan, Sohan and Sunil = 750 : 500 : 250 = 3 : 2 : 1

Let their capitals be Rs. 3x, Rs. 2x and Rs. x respectively.

Then, 3x = 17400

x =  17400  = Rs. 5800
3

Hence, Sohan capital = 2x = 2 × 5800 = Rs. 11600

Therefore, option A is correct.

Quantitative Aptitude Questions for LIC AAO 2019 and Download PDF Free

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In Quantitative Aptitude section, this section is quite important because it's decide you can crack this exam or not because there are various students who think that quantitative aptitude is a difficult section and you and other students on a similar score  having total score for example you get a score of marks and there are around students on the same score  but you got more marks in Quantitative Aptitude section as compared to other students because they think that it’s a bit difficult section then you will have better marks in total because this section. In LIC AAO 2019 Quantitative Aptitude Section will decide your entry in Life Insurance Corporation Assistant Administrative Officer so this section is automatically given more importance since so quantitative aptitude section is the most important section which is use as Entry Pass section.

Negative Marking: last thing which you need to keep note of is that LIC AAO exam gives you a negative marking of 0.25 marks for every wrong question so you must ensure that you are confident on the question which you are attempting  so that you don't get most of the  questions wrong and negative marking as a result of the wrong questions.

Syllabus of Quantitative Aptitude for LIC AAO 2019 (Life Insurance Corporation Assistant Administrative Officer):



Data Analysis and Interpretation

Simplification    

Time & Work

Percentage        

Time, Speed & Distance

Profit & Loss      

Problems on Trains

Simple & Compound Interest       

Mensuration – Cylinder, Cone, Sphere

Ratio & Proportion          

Problems on Age

Permutation & Combination

Probability

Average              

Number System

Partnership        

Missing Term  & Wrong Term Series

Mixture & Alligation

Pipes & Cisterns

In LIC AAO 2019 Quantitative Aptitude Section is a 35 marks section with 35 questions each question consist 1 marks and 0.25 for negative as we have already discussed earlier. Generally questions of this section  the level of difficulty was easy to moderate as you felt while solving above in the questions those questions are quite similar to real LIC AAO Exam those questions are new pattern based in speciall designed for LIC AAO 2019.