Aptitude - Questions & Answers

Aptitude Online Quiz

Following quiz provides Multiple Choice Questions (MCQs) related to Aptitude. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Q 1 - The length, expansiveness and tallness of a cuboid are in the proportion 6:5:4 and its entire surface region is 33300 cm². Its volume is:

A - 45000 cm³

B - 405000 cm³

C - 455000 cm³

D - information deficient

Answer : B

Explanation

Let length = 6x cm, breadth = 5x cm and height = 4x cm
Whole surface area = 2(lb+ bh + lh)
=2 (6x*5x + 5x *4x + 6x *4x) cm² = (148x²) cm²
∴148x²= 33300 ⇒x² = 225 ⇒x = √225 = 15 cm
∴L= 90 cm   , B= 75 cm and h= 60 cm
∴Volume = (L*b*h) = (90*75*60) =405000cm³

Q 2 - if √24 is approximately equal to 4.898 , then √8/3 is nearly equal

Answer : C

Explanation

√8/3 = √8*3/3*3 = √24/3 =4.898/3 = 1.633

Q 3 - 3/2 /1+1/(1+1/4)= ?

Answer : C

Explanation

given exp. = (3/2) / 1+ 1(/5/4)
=  (3/2)/ (1+4/5)
= (3/2) /(9/5)
= ( 3/2 * 5/9)
= 5/6

Q 4 - x is 7 times large as Y. The percent that Y is less then x is

Answer : C

Explanation

x=7Y .Thus, Y is less than x  by 6Y
=> Y is less x by 6Y/7Y*100=600/7%

Q 5 - Which of the following is same as 54.327 x 357.2 x .0057?

A - 5.4327 x 3.572 x 5.7

B - 5.4327 x 3.572 x .57

C - 54327 x 3572 x .0000057

D - 543.27 x 35.72 x .0057

Answer : A

Explanation

 
 As sum of decimal places in product is 8 and in option A is also 8.

Q 6 - The average age of five officers in a department is 32 years. If the age of their supervisor is added the average increases by 1. What is the supervisor's age?

Answer : C

Explanation

Supervisor?s age = 32 + 6 = 38 years

Q 7 - If x/4 + y/3= 5/12 and x/2+ y =1, then the estimation of (x+y) is:

Answer : C

Explanation

Given equations are 3x+4y= 5 ...(i) and x+2y =2 ...(ii)
On multiplying (ii) by 3 and subtracting (i) from it, we get 2y = 1 ⇒y = 1/2
Putting y = 1/2 in (ii), we get x+2*1/2 = 2 ⇒x+1= 2 ⇒x =1
∴(x+y ) = (1+1/2 ) = 3/2

Q 8 - At what time between 4 and 5 o' clock are the hands of a clock 3 minutes apart?

A - 45.09 minutes past 4 o' clock.

B - 35.09 minutes past 4 o' clock.

C - 25.09 minutes past 4 o' clock.

D - 15.09 minutes past 4 o' clock.

Answer : C

Explanation

At 4 o' clock, the minute hand is 20 min spaces behind the hour hand.
There are two possible cases for the given scenario.

Case I ? Minute hand is 3 min spaces behind the hour hand.
In this case the minute hand has to gain (20-3) = 17 minutes.
= (60/55) * 17 
= (12/11) * 17
= 204/11

∴ The minute hand will be 3 minute apart at 204/11 min or 18.54 min past 4.

Case II ? Minute hand is 3 minutes spaces ahead of the hour hand. 
In this case the minute hand has to gain (20+3) = 23 minute spaces.
= (60/55)*23
= (12/11)*23
= 276/11
= 25.09 minutes

∴ The hands will be 3 minute apart at 25.09 minutes past 4 o' clock.

Q 9 - Ajay , Bijender and chaman started a business and invested Rs. 20000 each partner .After the period of 4 month, some changes are made in investment just like Ajay withdraw Rs. 5000, Bijender and chaman both add 6000 each in the invested capital. An amount of Rs. 69900 recorded as a profit in the firm. What should be the share of Bijender in profit?

Answer : B

Explanation

Ajay : Bijender: chaman = (20000*5+15000*7) : (20000*5+ 16000*7) :(20000*5+26000*7)
= 205000: 212000 : 262000 =  205 : 212: 282
Share of B  in profit =  Rs. (69900* 212/699) = Rs. 21200

Q 10 - The aggregate surface territory of a strong barrel is 231 cm². On the off chance that its bended surface zone is two ?third of its aggregate surface zone, then its Volume is:

Answer : A

Explanation

(2πrh+2πr²) =231 and 2πrh= 2/3*231= 154
∴154+ 2πr² =231 ⇒2*22/7*r²= (231-154) =77
⇒r² = (77*7/44)= 49/4 ⇒ r =7/2 cm
∴2*22/7*7/2*h= 154   ⇒ h= 7cm
∴ Volume = πr²h = (22/7 *7/2 * 7/2 * 7) cm³ = 539/2 =269.5 cm³

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