Quantitative Aptitude Questions for LIC AAO 2019 and Take Quant Quiz with Explanation with PDF for free, Practice Quantitative Aptitude Mock Test for Free

Directions: Read the following questions carefully and choose the right answer.
Important for :
1
The speed of current is 5 km/h. What will be the respective downstream speed and upstream speed of a boy rowing a boat, if one third of the distance covered going downstream in a certain time is equal to the distance covered going upstream in the same time.
» Explain it
A
Let the speed of boy in still water be X km/h

And the speed of current is given = 5 km/h

Downstream speed = (X + 5) km/h

Upstream speed = (X – 5) km/h

Let time be ‘t’ hours.

⇒  (X + 5) t  =  (X – 5) t
3

⇒ X + 5 = 3X – 15

⇒ 2X = 20

⇒ X = 10 km/h

Downstream speed = 10 + 5 = 15 km/h

Upstream speed = 10 – 5 = 5 km/h

Hence, option A is correct.
 
2
2 employees and 3 trainees together can finish a project in 7 days, 6 employees and 13 trainees together can finish the same project in 2 days. Find the time taken by 4 employees and 4 trainees together to finish the same work.
» Explain it
A
Let time taken by 4 employees and 4 trainees together is ‘x’.
 
Let one day work of one employee and one trainee is ‘E’ and ‘T’ respectively.
 
Total work = 7 × (2E + 3T) = 2 × (6E + 13T)
 
⇒ 14E + 21T = 12E + 26T
 
⇒ 2E = 5T …….. (1)
 
Total work done by 4 employees and 4 trainees together in ‘x’ days = x × (4E + 4T) = 2 × (6E + 13T)
 
From equation (1)-
 
⇒ x × (10T + 4T) = 2 × (15T + 13T)
 
⇒ x =  56T  = 4 days
14T

Hence, option A is correct.

3
In how many ways can the walls of a cuboidal box be painted using six different colours using one colour for each wall if six different symbols are carved on the box with one on each wall?
» Explain it
C
No. of ways in which the walls of the box can be painted using six different colours = 6! = 720.

Hence, option C is correct.
 
4
Instead of normal weighing scale a shopkeeper used forged scale. He used 1.4 kg scale while buying and 840g scale while selling, what will his overall profit percentage, if in the end he offers 10% discount?
» Explain it
A
Let’s say the price of 1000g of goods = Rs.1000

Now he gets 1400g of goods at Rs.1000

Hence CP of shopkeeper for 1 g

1000  = Rs. 5
1400 7

CP of shopkeeper for 840g
5  × 840 = Rs.600
7

Now instead of selling 1000g he sells 840g for Rs.900 (10% discount)
Profit =  900 – 600  × 100 = 50%
600

Hence, option A is correct.

5
A certain amount of money is lent out at compound interest at the rate of 20% per annum for two years, compounded annually. It would give Rs. 482 more if the amount is compounded half yearly. Find the principle.
» Explain it
E
When compounded annually, the amount received at the end of the period is A

= P  ( 1 +  r ) n
100  

When compounded half yearly, the amount received at the end of the period is A
= P ( 1 +  r/2 ) 2n
100  

Let the principle be P.

Interest on this amount when compounded annually at the rate of 20% per annum = P [(1.20)2 − 1]

Interest on this amount when compounded half yearly = P [(1.10)4 − 1]

The difference between the two is Rs. 482

∴ P [(1.10)4 − 1] – P [(1.20)2 −1] = 482

∴ P [1.4641 – 1.44] = 482

∴ P = Rs. 20,000

Hence, option E 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.