IQ Test, Mental Aptitude, Logical Reasoning & Mathematical Tests

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Question No 1

You are the son of my father's brother. What am I to you?

Select the correct answer


Solution!
You are my uncle's child and I am your cousin..

Question No 2

How many times in a day, are the hands of a clock in straight line but opposite in direction?

Select the correct answer


Solution!
The hands of a clock point in opposite directions (in the same straight line) 11 times in every 12 hours. (Because between 5 and 7 they point in opposite directions at 6 o'clcok only).

So, in a day, the hands point in the opposite directions 22 times..

Question No 3

'A' is without sons and brothers, but the father of B is A's father's son. What is 'B' to 'A'?

Select the correct answer


Solution!
A's father's son means A himself because A has no brother.

So A is father of B.
As A has no son, B must be her daughter..

Question No 4

A man can row 1 km upstream in 20 minutes, and downstream in 15 minutes. What is the speed of the current?

Select the correct answer


Solution!
20 minutes = 20/60 = 1/3 hours
Upstream distance covered in 1/3 hours = 1 Km
Upstream distance covered in 1 hour = 1/(1/3) = 3 Km
Upstream speed = y = 3 Km/h

Now
15 minutes = 15/60 = 1/4 hours
Downstream distance covered in 1/4 hours = 1 Km
Downstream distance covered in 1 hour = 1/(1/4) = 4 Km
Downstream speed = 4 Km/h

speed of water = (1/2)*(4-3) = 1/2 = 0.5 Km/h.

Question No 5

A man's age is three times his son's. In 15 years it will be double that of his son's. How old is the son now?

Select the correct answer


Solution!
Let Son's age is x
Mans Age = 3x

Given that
3x+15 = 2(x+15)
3x+15 = 2x+30
3x-2x = 30-15

x = 15

Hence son is 15 years old..

Question No 6

A mother's age after 5 years, will be twice the age of her daughter. The difference of their ages is 19. What is the age of mother?

Select the correct answer


Solution!
Let present age of daughter is x and present age of mother is y.

Given that
y+5 = 2(x+5)
y+5 = 2x+10
5-10 = 2x-y
y-2x = 5 ...(1)

and also given that
y-x = 19 ...(2)

By simultaneously solving equation(1) and equation(2) we can find
y = 33

Hence mothers present age is 33 years..

Question No 7

Choose the word that is a necessary part of the word "harvest"

Select the correct answer


Solution!
To harvest something, one must have a crop, which is the essential element for this item. Autumn (choice a) is not the only time crops are harvested. There may not be enough of a crop to stockpile (choice b), and you can harvest crops without a tractor (choice c)..

Question No 8

X can do a piece of work in 40 days.He works at it for 8 days and then Y finished it in 16 days.How long will they together take to complete the work?

Select the correct answer


Solution!
Work done by X in 8 days = (1/40 * 8)
= 1/5

Remaining work = (1 - 1/5)
4/5

Now, 4/5 work is done by Y in 16 days.

Whole work will be done by Y in (16 * 5/4)
= 20 days

So,
X's 1 day's work = 1/40
Y's 1 day's work = 1/20

(X + Y)'s 1 day's work = (1/40 + 1/20) = 3/40

Hence, X and Y will together complete the work in 40/3 days.

Question No 9

A 270 metres long train running at the speed of 120 kmph crosses another train running in opposite direction at the speed of 80 kmph in 9 seconds. What is the length of the other train?

Select the correct answer


Solution!
Relative speed = (120 + 80) km/hr
= 200(5/18)m/s
= (500/9)m/s

Let the length of the other train be x metres

Then,
(x+270)/9 = 500/9
x + 270 = 500

Hence, x = 230.

Question No 10

Safe is to Secure as Protect is to?

Select the correct answer


Solution!
As safe ans secure have same meaning in the same way protect and guard have same meaning..

Question No 11

Subtract eight and nine from twenty-five.

Select the correct answer


Solution!
25 - 8 - 9 = 8.

Question No 12

Choose the word that is a necessary part of the word "gala"

Select the correct answer


Solution!
A gala indicates a celebration, the necessary element here. A tuxedo (choice b) is not required garb at a gala, nor is an appetizer (choice c). A gala may be held without the benefit of anyone speaking (choice d)..

Question No 13

0 , 1 , 4 , 9 , 16 , 25 , 36 , 49 , ?

Select the correct answer


Solution!
Add 1, 3, 5, 7, etc..

Question No 14

Architect is to Building as Sculptor is to?

Select the correct answer


Solution!
As 'Architect' makes 'Building'
similarly 'Sculptor' makes 'Statue'..

Question No 15

With an increase of 12% salary of Ali became Rs13440. What was his salary before increase?

Select the correct answer


Solution!
Let before increase Ali's salary was x.
12% of x = 12x/100 = 3x/25

Now
13440 - 3x/25 = x
336000 - 3x = 25x
336000 = 28x
x = 12000

Hence Ali's salary before increase was Rs. 12000.
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