LIC AAO 2019 Quantitative Aptitude Paper with PDF for Free | Maths Quizzes with Explanation at Smartkeeda

Directions: Read the following questions carefully and choose the right answer.
Important for :
1
Rs. 160000 is divided into two equal parts. One part is invested in a scheme which gives 12% interest compounded annually for two years. The other part is invested in a scheme offering simple interest of 13% for 2 years. What is the difference between the interest earned on the two schemes?
» Explain it
C
Method I:

The amount of 160000 is divided into two equal parts - 80000

Interest earned in the first scheme = 80000*(112/100)*(112/100) = 100352-80000= 20352

Interest earned in the second scheme = 80000*13*2/100 = 20800

Difference = 20800- 20352 = Rs. 448

Method II:

The amount of 160000 is divided into two equal parts - 80000

When Rs. 80000 is compounded annually for 2 years at the rate of 12% interest. the effective rate of interest for two years becomes 25.44% (Kindly refer to Sub-details).

And that man invests half the part in another scheme offering 13% per annum at simple interest for 2 years, the interest become 26%.

Rate per cent difference = 26% – 25.44 = 0.56%

Required difference = 0.56% of 80000 = 448

---------------------------------------------------
Sub details:

We can calculate the effective rate of interest by applying the net% effect formula

= x + y +  xy %
100

Here, x = 12% and y = 12%

So, the effective rate of interest for two years will be as follows:

= 12 + 12 +  12 × 12  = 25.44%
100

Hence, option C is correct.
2
 A and B start a business in which B contributed to 40% of the capital and the rest by A. After few months A withdrew half of his amount and B withdrew quarter of what he had invested. After how many months did they make the withdrawal if after 1 year  A and B shared the profit in the ratio 102/82 respectively?
» Explain it
C
Let the total capital in the business be 100x

Contribution of A = 60x and contribution of B = 40x

Let the time before withdrawal be x months

So time money product before withdrawal= A = 60xy and B = 40xy

After withdrawal Capital of A= 30x and B= 30x

So time money product after withdrawal = A= 30x(12 – y) and B = 30x(12 – y)

Total time money product of A = 60xy + 30x(12 – y)

Total time money product of B = 40xy + 30x(12 – y)

Now their ratio is 102 : 82

So we will equate them in the way

60xy + 30x(12 – y)  =  102
40xy + 30x(12 – y) 82

y will come out to be 5 months

Hence, option C is correct.
3
Ratio of present age of X & Y is 4 : 3. At the time X & Y got married this ratio was 5 : 3. After 4 years this ratio became 9 : 7.  How many years ago did X & Y got married?
» Explain it
B
Let the present age of X be 4m and the present age of Y be 3m

Also, let us assume that they got married t years ago.
 
So, as per the question

(4m – t)  =  5          ....(1)
(3m – t) 3

(4m + 4)  =  9 .      ...(2)
(3m + 4) 7
 
Equation (2) is solvable as (1) has 2 variables. Thus, solving (2)

7 × (4m + 4) = 9 × (3m+4)

28m +28 = 27m +36

m = 8
 
Now using the value of m in (1) we get
(32 – t)  =  5
(24 – t) 3

t = 12 years

Hence, option B is correct.
4
Inside a rectangular ground of dimensions 40m × 50m, a circular area of radius 14m is demarcated to install a ride. The remaining area is to be covered in tiles. If the cost of laying tiles is rupees 50 square meter, what is the total cost of laying tiles?..
» Explain it
D
The area of the ground is 40 × 50 = 2000m2

The area of the circular area is  22  × 14 × 14 = 616 m2
7

The remaining area = 2000 – 616 = 1384 m2

The cost of laying tiles = 1384 × 50 = Rs. 69200

Hence, option D is correct.
5
The average weight of 60% students of a class is 50% more than the remaining students. There are 25 students in the class. What is the total weight of the class if the average weight of the 60% students is 60 kg? 
» Explain it
B
Since there are 25 students in a class. 60% have an average of 60kg

Which means that 15 students have an average weight of 60kg

The other 10 students have weight of 33.33% less than that of the 60% students (Product Constancy)

So, it means their weight is 40kg

Total weight is (15 × 60) + (10 × 40) = 1300 kg

Hence, option B is correct.

Quantitative Aptitude Paper 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.