# Quantitative Aptitude Paper for LIC AAO 2020 and Download PDF for Free, Probability, Mixture & Alligation, Boats & Stream Quiz at Smartkeeda

Important for :
1
A wholesaler allows a discount of 20% on the list price to a retailer. The retailer sells at 10% discount on the list price. If the customer paid Rs 108 for an article, what profit is made by the retailer?
» Explain it
D
Let the list price be x

So the discount offered by the retailer is 0.1x

and the SP becomes 0.9x

Since SP given is 108, equating we get

0.9x = 108

x =120

Since the wholesaler gives 20% discount on the list price, it means he sells the product at 80% of the list price which is
80% of 120 = 96

This becomes CP for the retailer

So Profit earned by the retailer is 108 – 96 = Rs. 12

Hence, option D is correct..
2
Aditya and Bhushan invested 10000 each in scheme A and scheme B respectively for 3 years. Scheme A offers Simple interest @ 12% per annum and scheme B offers compound interest @ 10%. After 3 years, who will have larger amount and by how much?
» Explain it
C
Lets first calculate the total rate % that Aditya will have after 3 years:

As per the question Aditya invested at rate of 12% pa simple interst

So, for 3 years tenure he will get = 12 × 3 = 36%

And the amount that Bhushan invested at rate of 10% pa compound interest

By net% effect formula, we can calculate the total perecntage for 3 years tenure = 33.1% (sub details)

So, the difference between SI and CI = 36% – 33.1% = 2.9% (SI is more)

Here Aditya will get, 2.9% of 10000 = 290

So Aditya will have Rs. 290 more than Bhushan.

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

 Net% effect = x + y = xy % 100

For the first 2 years: Here, x = y = 10%

 = 10 + 10 = 10 × 10 = 21% 100

And for the next year: Here x = 21% and y = 10%
 = 21 + 10 = 21 × 10 = 33.1% 100

Hence, option C is correct.
3
A Man is running in a tunnel at a speed of 20m/s and he takes 10 minutes to cross the tunnel. When he is halfway through the tunnel, a car enters the tunnel in the direction he is running. Both of them reached the end of the tunnel together.  What is the speed of the car?
» Explain it
C
This question requires no calculation

At the time the car enters the tunnel, the man is halfway into the tunnel. The time in which the man completed the other half of the tunnel, the car covered the whole tunnel. So it means that in the given time, car covered twice the distance that the man covered.

Distance = Speed ×  time

Since time is time taken is same in both the cases, it must be the speed.

So it is established that speed of car is twice that of the man

Speed of car = 2 × 20m/s = 40 m/s

Hence, option C is correct.
4
The radii of two cones are equal. If their slant height be in the ratio 7 : 8, what is the ratio of their Curved Surface Areas?
» Explain it
C
There is no need for calculation here.

Curved Surface Area can be calculated as – π × radius × slant height

We can see that CSA is directly proportional to the single power of slant height.

Since radii are equal,  CSA are in proportion of the respective slant heights i.e 7 : 8.

Hence, option C is correct.
5
A box contain 4 violet pens, 5 green pens and 6 white pens. A pen is drawn at random from the box. What is the probability that the pen drawn is either violet or green?

» Explain it
B
Total number of pens = 4 + 5 + 6 = 15

N(s) = Number of ways of choosing one pen from 15 = 15C1 = 15

P(Getting violet or Green pen)

 = 4 + 5 = 9 = 3 15 15 15 5

Hence, option B is correct.

### Maths Question Paper for LIC AAO 2020 with PDF

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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 2020 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 2020 (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 2020 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 2020.