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Q:

Among three numbers, the first is twice the second and thrice the third. If the average of three numbers is 429, then what is the difference between the first and the third number?

A) 412 B) 468
C) 517 D) 427
 
Answer & Explanation Answer: B) 468

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Q:

There is a three digit number. The digit at the tenth place is 3. If the place of all the digits are replaced with each other symmetrically about the tens position,then the new number obtained is 396 more than the original three digit number. The sum of the digits at unit & hundredth place is 14. Find out the original number?

A) 513 B) 539
C) 439 D) 613
 
Answer & Explanation Answer: B) 539

Explanation:

Ans.
Let digit = xyz
Given y = 3
According to the question = (100z+10y+x) - (100x+10y+z) = 396x99z-99x = 396
Z-x = 4
Also, Z+ x = 14
Solving (i) & (ii)
Z = 9 , x= 5
The original number is 539

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0 1989
Q:

What is the sum of first 40 terms of 1 + 3 + 4 + 5 + 7 + 7 + 10 + 9 + ....?

A) 1010 B) 1115
C) 1030 D) 1031
 
Answer & Explanation Answer: C) 1030

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5 1978
Q:

What is the unit place digit in the expansion of  773?

A) 1 B) 3
C) 7 D) 9
 
Answer & Explanation Answer: C) 7

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0 1937
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

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3 1874
Q:

What is 0.53 + 0.53equal to ?

A) 1.068 B) 1.072
C) 1.082 D) 1.096
 
Answer & Explanation Answer: A) 1.068

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1 1810
Q:

Of the 5 numbers whose average is 76, the first is 3/7 times the sum of other 4. The first number is

A) 171 B) 114
C) 76 D) 228
 
Answer & Explanation Answer: B) 114

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3 1793
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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