Quantitative Aptitude with Explanation for LIC AAO 2019 and Download PDF and Take Quantitative Aptitude Test for Free

Directions: Read the following questions carefully and choose the right answer.
Important for :
1
A shopkeeper marks his article in such a way that even after allowing 18% discount on marked price, he gains 28%. If the cost price of the article is Rs.246, find the marked price of the article.
» Explain it
B
mp × (100 – %d) = cp × (100 + %p)

⇒ mp × (100 – 18) = 246 × (100 + 28)

⇒ mp =  246 × 128
82

⇒ mp = Rs.384

Hence, option B is correct.
2
In a town males and females are in the ratio 3 : 2. Out of males 25% are children and rest are adults. If the adult male population of the town  is 8100, find the total population of the town .  
» Explain it
D
Let the total population of the town= y

% of males =  3  × 100% = 60%
5

% of adult males =  100 – 25  × 60% = 45%
100

45  × y = 8100
100

⇒ y = 8100 ×  100
45

⇒ y = 18000

Hence, option (D) is correct. 
3
A, B and C entered into a partnership with investment in the ratio 5 : 4 : 6. After one year A doubled his investment and C withdrew half of his investment amount. At the end of two years, they earned a profit of Rs.96000, find the sum of the shares of B and C in the profit.
» Explain it
C
 Let the investment of A, B and C are Rs.5x, Rs.4x and Rs.6x

Ratio of shares of A, B and C in the profit

= (5x + 5x × 2) : (4x + 4x) :  ( 6x +  6x )
2

= 15x : 8x : 9x = 15 : 8 : 9

Sum of the shares of B and C in the profit
8 + 9  × 96000
15 + 8 + 9

17  × 96000
32

= Rs.51000

Hence, option (C) is correct. 
4
Find the difference between compound interest and simple interest on a sum of Rs.120000 at the rate of 12% per annum for three years.
» Explain it
B
Method I:

CI = P ( 1 +  r ) n  – P
100  

⇒ CI = 120000 ×  112  ×  112  ×  112  – 120000
100 100 100

⇒ CI = 168591.36 – 120000

⇒ CI = Rs.48591.36
 
SI =  P × r × t
100

⇒ SI =  120000 × 12 × 3  = Rs. 43200
100

Required difference = Rs. (48591.36 – 43200) = Rs.5391.36

Method II:

We know that, for three years
CI – SI = P  ( r ) 2  ×  300 + r
100   100

⇒ CI – SI = 120000 ×  ( 12 ) 2  ×  300 + 12
100   100

⇒ CI – SI = 120000 ×  ( 3 ) 2  ×  312
25   100

⇒ CI – SI = 120000 ×  9  ×  312
625 100

⇒ CI – SI = Rs.5391.36

Hence, option (B) is correct. 
5
A, B and C start running around a circular field having circumference 144 metre at the same time from the same point. Speeds of A, B and C are 6 m/minute, 8 m/minute and 12 m/minute. Find after how much time, they will meet again at the same point for the first time.
» Explain it
A
Time taken by A to complete one round

144  = 24 minutes
6

Time taken by B to complete one round
144  = 18 minutes
8

Time taken by C to complete one round
144  = 12 minutes
12

LCM of 24, 18 and 12 = 72

Hence, they will meet after 72 minutes.

Hence, option (A) is correct. 

Quantitative Aptitude Questions for LIC AAO 2019

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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.