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MCQs

Total Questions : 65 | Page 1 of 7 pages
Question 1.

After several defeats in wars, Robert Bruce went in exile and wanted to commit suicide. Just 

before committing suicide, he came across a spider attempting tirelessly to have its net. Time 

and  again,  the  spider  failed  but  that did not  deter  it to refrain from making attempts. Such 

attempts  by  the spider  made  Bruce  curious. Thus,  Bruce  started observing the nearimpossible

goal of the spider to have the net. Ultimately, the spider succeeded in having its
net despite several 

failures. Such act of the spider encouraged Bruce not to commit suicide. And then, Bruce went 

back again and won many a battle, and the rest is history.
Which one of 
the following assertions 

is best supported by the above information?


  1.    Failure is the pillar of success
  2.    Honesty is the best policy
  3.    Life begins and ends with adventures
  4.    No adversity justifies giving up hope
 Discuss Question
Answer: Option D. -> No adversity justifies giving up hope



Question 2.

The current erection cost of a structure is Rs. 13,200. If the labour wages per day increase by 

1/5 of the current wages and the working hours decrease by 1/24 of the current period, then
the

 new cost of erection in Rs. is


  1.    16,500
  2.    15,180
  3.    11,000
  4.    10,120
 Discuss Question
Answer: Option B. -> 15,180

Let 'W' be the labour wages, and 'T' be the working hours. 

 Now, total cost is a function of `W` x `T` 

Increase in wages = 20% 

`:.`  Revised wages = 1.2 `W`

Decrease in labour time = (`100/24`)%

`:.`  Re vised time = (1 - `1/24`) `T` = `23/24` `T`

`:.`  Revised Total cost = 1.2 x `23/24` `WT` = 1.15 `WT`

                                     = 1.15 x 13200 = 15180



Question 3.

Find the sum of the expression 

`1/(sqrt(1) + sqrt(2))` + `1/(sqrt(2) + sqrt(3))` + `1/(sqrt(3) + sqrt(4))`  +..... +`1/(sqrt(80) + sqrt(81))`


  1.    7
  2.    8
  3.    9
  4.    10
 Discuss Question
Answer: Option B. -> 8

`1/(sqrt(1) + sqrt(2))` + `1/(sqrt(2) + sqrt(3))` + `1/(sqrt(3) + sqrt(4))`  +..... +`1/(sqrt(80) + sqrt(81))`

= `(sqrt(2) - sqrt(1))/((sqrt(2))^2 - (sqrt(1))^2)` + `(sqrt(3) - sqrt(2))/((sqrt(3))^2 - (sqrt(2))^2)` + `(sqrt(4) - sqrt(3))/((sqrt(4))^2 - (sqrt(3))^2)` +..... + `(sqrt(81) - sqrt(80))/((sqrt(81))^2 - (sqrt(80))^2)`

= `sqrt(81)` - `sqrt(1)` = 8



Question 4.

A tourist covers half of his journey by train at 60 km/h, half of the remainder by bus at 30
km/h and the rest by cycle at 10 km/h. The average of the tourist in km/h during his entire
journey is  


  1.    36
  2.    30
  3.    24
  4.    18
 Discuss Question
Answer: Option C. -> 24

Let the total distance covered be 'D'

Now, average speed = `D/(Total   time   taken)`

= `D/(D/2/60 + D/4/30 + D/4/10)` = `1/(1/120 + 1/120 + 1/40)`  =`(120)/5`  =  24 km /hr



Question 5.

Out of all the 2-digit integers between 1 and 100, a 2-digit number has to be selected at
random. 

What is the probability that the selected number is not divisible by 7? 


  1.    13/90
  2.    12/90
  3.    78/90
  4.    77/90
 Discuss Question
Answer: Option D. -> 77/90

The number of 2 digit multiples of 7 = 13  

`:.`  Probability of choosing a number 

Not divisible by 7= `(90 - 13)/90` = `77/90`


Question 6.

What will be the maximum sum of 44, 42, 40, ... ?


  1.    502
  2.    504
  3.    506
  4.    500
 Discuss Question
Answer: Option C. -> 506

The maximum sum is the sum of 44, 42,--------2.

The sum of 'n' terms of an AP  

= `n/2` [2a + ( n - 1 )d]

In this case, n = 22, a = 2 and d = 2 

`:.`  Sum = 11[4 + 2l x 2] = 11 x 46 = 506


Question 7.

Which one of the following options is the closest in meaning to the word given below? 

Nadir


  1.    Highest
  2.    Lowest
  3.    Medium
  4.    Integration
 Discuss Question
Answer: Option B. -> Lowest

Nadir in the lowest point on a curve 


Question 8.

Choose the grammatically INCORRECT sentence:  


  1.    He is of Asian origin
  2.    They belonged to Africa
  3.    She is an European
  4.    They migrated from India to Australia
 Discuss Question
Answer: Option C. -> She is an European


Question 9.

Complete the sentence: 

Universalism is to particularism as diffuseness is to ________  


  1.    specificity
  2.    neutrality
  3.    generality
  4.    adaptation
 Discuss Question
Answer: Option A. -> specificity

The relation is that of antonyms


Question 10.

Were you a bird, you ___________ in the sky. 


  1.    would fly
  2.    shall fly
  3.    should fly
  4.    shall have flown
 Discuss Question
Answer: Option A. -> would fly


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