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Q:

Find the regular polygon whose interior angel is 150 more than exterior angle. note the total sum of interior and exterior angle should be 180 at one point ?

A) 12 B) 24
C) 36 D) 6
 
Answer & Explanation Answer: B) 24

Explanation:

Sum of Interior angle is 180 .
and it is given that interior angle is 150 more than exterior,
so let exterior angle is x then interior will be x+150

now , interior + exterior =180
x+150+x=180
x=15

now , number of sides of polygon = 360 / exterior angle
n = 360 / 15
n = 24

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Q:

Which of the following is equivalent to 0.565656...?

A) 56/100 B) 56/1000
C) 56/99 D) 560/90
 
Answer & Explanation Answer: C) 56/99

Explanation:
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Q:

Which of the following is not a Triangular number?

A) 15 B) 10
C) 5 D) 3
 
Answer & Explanation Answer: A) 15

Explanation:
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3 865
Q:

Two numbers are 10% and 20% lesser than a third number respectively. By how much percent is the second number should be enhanced to make it equal to the first number?

A) 10 B) 15
C) 12.5 D) 8
 
Answer & Explanation Answer: C) 12.5

Explanation:
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Q:

In the given series of numbers how many 7's are there which are immediately followed by 9 and immediately not preceeded by 5 ?

 

A) 6 B) 2
C) 1 D) 4
 
Answer & Explanation Answer: B) 2

Explanation:
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3 705
Q:

For how many integer values of n will the value of the expression 4n + 7 be an integer greater than 1 and less than 200?

A) 48 B) 49
C) 50 D) 51
 
Answer & Explanation Answer: C) 50

Explanation:

1 < 4n + 7 < 200

n can be 0, or -1

n cannot be -2 or any other negative integer or the expression 4n + 7 will be less than1.

The largest value for n will be an integer < (200 - 7) /4

193/4 = 48.25, hence 48

The number of integers between -1 and 48 inclusive is 50

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2 7305
Q:

If x / y is an integer, which of the following statements need NOT always be true?

A) both x and y are integers B) only x is a integer
C) both are negative D) none
 
Answer & Explanation Answer: A) both x and y are integers

Explanation:

In case (A), x and y could, for example, both be equal fractions and x/y would be an integer.

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2 2908
Q:

If you write down all the numbers from 1 to 100, then how many times do you write 4 ?

A) 11 B) 20
C) 17 D) 14
 
Answer & Explanation Answer: B) 20

Explanation:

4, 14, 24, 34, 44, 54, 64, 74, 84, 94 => has 11 number of (4's)
40, 41, 42, 43, 45, 46, 47, 48, 49 => has 9 number of (4's)
So, totally (11 + 9 = 20) number of 4's in 1 to 100.

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