Quantitative Aptitude Questions with Answers for LIC AAO 2019 with PDF and Get to Know the Maths Syllabus or Quantitative Aptitude Topics for LIC AAO 2019

Directions: Read the following questions carefully and choose the right answer.
Important for :
1
Shyam and Ram entered into a partnership with investment in the ratio 3 : 2 respectively. Among them, Ram is the working partner for which he gets 10% of the profit and Shyam is the sleeping partner. If at the end of one year they earned a profit of Rs. 75000 out of which 5% goes to the charity. Find the share of Ram in the profit.
» Explain it
D
Amount goes to charity =  5  × 75000 = Rs. 3750
100

Amount goes to Ram as a working partner
 
10  × 75000 = Rs. 7500
100

Remaining amount = Rs. (75000 – 3750 – 7500) = Rs. 63750
 
Share of Ram in the remaining profit =  2  × 63750 = Rs. 25500
5

Total share of Ram = Rs. (7500 + 25500) = Rs. 33000

Hence, option D is correct.
 
2
An alloy of aluminium, copper and Iron contains 85% aluminium, 8% copper and 7% iron. A second alloy of aluminium and iron melted with the first and the mixture then contains 75% aluminium, 5% copper and 20% iron. Find the percentage of aluminium in the second alloy.
» Explain it
B
Let x and y be the mass of 1st alloy and 2nd alloy.

aluminium in the 1st alloy =  85x
100

copper in the 1st alloy =  8x
100

iron in the 1st alloy =  7x
100

According to question, for copper
 
8x  
100  × 100 = 5
x + y

8x = 5x + 5y

3x = 5y
 
x  =  5
y 3

x = 5 and y = 3

Let p = percentage of aluminium in the 2nd alloy

According to question,
 
5 ×  85  + 3 ×  p  = (5 + 3) ×  75
100 100 100

3p = 175
 
p =  175  = 58.33%
3

Hence, option (B) is correct.

3
The simple interest on a certain sum for 2 years at a certain rate of interest is Rs.2000 and compound interest on the same sum, same time and same rate of interest is Rs.2050. Then find the ratio between CI for 2 years and CI for 3 years?
» Explain it
A
SI for 2 years = Rs.2000

SI for 1 year = Rs.1000

In the 2nd year Rs.50 is added in CI which is 5% of 1000

Hence, R = 5%

⇒ 5% = 1000

⇒ 100% = 20000

Sum = Rs.20000

CI for 3 years = 20000  ( 105 ) 3  – 20000
100  

⇒ 23152.5 – 20000

⇒ 3152.5

Required ratio = 2050 : 3152.5

⇒ 20500 : 31525

⇒ 820 : 1261

Hence, option A is correct.
 
4
If four coins are tossed together, what is the probability of at least getting 2 heads?
» Explain it
B
P (getting at least 2 heads) = 1 – P (getting no head or exactly one head)

P (getting no head) = P (getting all tails) =  1
16

Now, P(exactly one head) :

Getting exactly one head means 3 tails and 1 head in any order and the total occurrences here are
4!  = 4
3!

Therefore, P(getting exactly one head)
4  =  1
16 4

Hence, P(getting at least 2 heads)
= 1 –  ( 1  +  1 )  =  11
16 4 16

Hence, option B is correct.
 
5
A fruit vendor sells apples and oranges and gets equal revenue from each. He gets a profit of 20% on each apple and a profit of 25% on each orange. If the ratio of the number of oranges sold to the number of apples sold is 3 : 2, what is the ratio of the cost price of an orange to that of an apple?
» Explain it
B
Let P be revenue from each apple and orange.

Cost of apples = P ×  100  =  5P
120 6

Cost of oranges = P ×  100  =  4P
125 5

Let the number of apples sold by the fruit vendor be 2n, then the number of oranges sold would be 3n.
 
Cost price of each apple =    1   ×   5P  =   5P
2n 6 12n

Cost price of each orange =   1  ×  4P  =   4P
3n 5 15n

Therefore, reqd. ratio =   4P  :   5P  = 16 : 25
15n 12n

Hence, option B is correct.
 

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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.