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Q:

Which of the following statements is not true?

A) The difference of two prime numbers, both greater than 2, is divisible by 2 B) For two different integers m, n and a prime number p, if p divides the product m × n, then p divides either m or n.
C)  If a number is of the form 6n –1 (n being a natural number), then its is a prime number. D) There is only one set of three prime numbers such that there is a gap of 2 between two adjacent prime numbers.
 
Answer & Explanation Answer: D) There is only one set of three prime numbers such that there is a gap of 2 between two adjacent prime numbers.

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Q:

Three numbers are in Arithmetic Progression (AP) whose sum is 30 and the product is 910. Then the greatest number in the AP is

A) 17 B) 15
C) 13 D) 10
 
Answer & Explanation Answer: C) 13

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Q:

What is the value of (91 + 92 + 93 + ......... +140)?

A) 5775 B) 11550
C) 17325 D) 23100
 
Answer & Explanation Answer: A) 5775

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Q:

The least number which when divides 37044, gives the result a perfect cube, is:

A) 2 B) 4
C) 14 D) 21
 
Answer & Explanation Answer: B) 4

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Q:

What is the value of 232 ?

A) 64 B) 128
C) 512 D) 256
 
Answer & Explanation Answer: C) 512

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Q:

If the number 583_437 is completely divisible by 9, then the smallest whole number in the place of the blank digit will be

A) 4 B) 5
C) 3 D) 6
 
Answer & Explanation Answer: D) 6

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Q:

Find two numbers whose sum is 29 and the product is 100.

A) 20, 5 B) 20, 9
C) 25, 4 D) 10, 10
 
Answer & Explanation Answer: C) 25, 4

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0 1611
Q:

Which one is the largest among the fractions (5/113), (7/120), (13/145) and (17/160)?

A) 5/113 B) 7/120
C) 13/145 D) 17/160
 
Answer & Explanation Answer: D) 17/160

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