Quant or Maths Questions with Answers for LIC AAO 2019 and Download LIC AAO Maths Paper PDF and Take Online Mock Test for Free at Smartkeeda

Directions: Read the following questions carefully and choose the right answer.
Important for :
1
Ankur, Bhanu and Chatur can finish an assignment in their company together in 20 days. They started the assignment together and Ankur left it after first 6 days. After next 4 days, Bhanu also left the assignment. Then Chatur completed the remaining three fifth of the assignment in 72 days. How many days would Bhanu alone take to finish the whole assignment?
» Explain it
D
Given :

Chatur complete  ( 3 ) th  of assignment in 72 days
5  

Therefore,

Chatur could complete the whole assignment in
 
72 × 5  = 120 days
3

Now,

(Ankur + Bhanu + Chatur) worked for 6 days.

So,
Parts of assignment completed in first six days =  6
20

Now, according to the question

(Bhanu + Chatur) worked for 4 days

So,
 
Parts of assignment completed in these four days
 
= 1 –  ( 3  +  6 )  = 1 –  9  =  1
5 20 10 10

Therefore,
 
(Bhanu + Chatur) could complete the whole assignment in (10 × 4) = 40 days

Let Bhanu could complete the whole assignment working alone in x days. Therefore,
 
1  +  1  =  1
x 120 40

40 (120 + x) = 120x

120x – 40x = 4800

x = 60

Hence, this is the required solution.

Therefore, option D is correct.
 
2
Rajeev’s present age is 100/3 % of his father’s age and his father’s age is half of Rajeev’s grandfather’s age. The average of the present ages of all of them is 110/3 years. What was the ratio of their ages 10 years ago?
» Explain it
B
Let Rajeev’s present age = x

His father’s present age = 3x

Grandfather’s present age = 6x

⇒  x + 3x + 6x  =  110
3 3

⇒ 10x = 110

⇒ x = 11

Rajeev’s present age = 11 years

10 years ago Rajeev’s age = 1 year

His father’s present age = 33 years

10 years ago = 23 years

His grandfather’s present age = 66 years

10 years ago = 56 years

Required ratio = 1: 23: 56

Hence, option B is correct.
 
3
Meenu has some money. She can buy 40 books or 90 pens with it. She keeps 20% of the money for food and with the remaining buys 36 pens and some books. Find the number of books she buys.
» Explain it
D
Let Meenu has Rs x

For simplification, x = LCM (40, 90) = 360
 
Thus, price of one book =  360  = Rs. 9
40

Similarly, price of one pen =  360  = Rs. 4
90

Now, amount left after keeping money for food = Rs. (360 – 20% of 360) =  Rs. 288

Price of 36 pens, P = 4 × 36 = Rs. 144

Amount left = Rs. (288 – 144) = Rs. 144
Therefore, No. of books Meenu buys =  144  = 16
9

Hence, option D is correct.
 
4
A milkman completely fills his 24 liter cistern with two type of milks A and B in the ratio 7 : 5. The cost price of type A milk is Rs.45 per liter. If he sold this mixture at the rate of Rs.56 per liter at a profit of 12%, then find the per liter cost price of type B milk.
» Explain it
D
Quantity of type A milk = 24 ×  7  = 14 liters
12

Quantity of type B milk = 24 ×  5  = 10 liters
12

SP of mixture = 24 × 56 = Rs.1344

CP of mixture when sold at 12% profit

= 1344 ×  100  = Rs.1200
112

CP of type A milk = 14 × 45 = Rs.630

CP of type B milk = Rs. (1200 – 630) = Rs.570
 
Per liter CP of type B milk =  570  = Rs. 57
10

Hence, option D is correct.

5
Out of total members 100/3 % are in room A and remaining are in room B. If 20 members from room B are shifted to room A, then total members in room A becomes 50% of total members. If 20 members from room A are shifted to room B, then find that total members in room A becomes what per cent of total members?
» Explain it
B
Let total members = N

Members in room A = 33  1  % of N =  N
3 3

Members in room B = N –  100N  =  2N
3 3

According to question-

⇒  N  + 20 =  N
3 2

⇒ 20 =  N
6

⇒ N = 120

Now, if 20 members from room A are shifted to room B-

⇒  N  – 20      
3  × 100 =  20  × 100 = 16.67%
  N 120

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.