Q:

What is the sum of the first 13 terms of an arithmetic progression if the first term is -10 and last term is 26?

A) 104 B) 140
C) 84 D) 98
 
Answer & Explanation Answer: A) 104

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Q:

Find the average of all prime numbers between 20 and 50.

A) 35.857 B) 35.657
C) 34.857 D) 36.657
 
Answer & Explanation Answer: A) 35.857

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Q:

The sum of a non-zero number and thrice its reciprocal is 52/7. Find the number.

A) 8 B) 9
C) 7 D) 6
 
Answer & Explanation Answer: C) 7

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Q:

A number is greater than twice its reciprocal by 31/4. Find the number.

A) 7 B) 8
C) 9 D) 6
 
Answer & Explanation Answer: A) 7

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Q:

What is the digit in unit's place of the product 51 x 52 x 53 ...... 59?

A) 0 B) 4
C) 3 D) 6
 
Answer & Explanation Answer: A) 0

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Q:

Sum of twice a fraction and 5 times its reciprocal is 7. What is the fraction?

A) 2/5 B) 5/4
C) 5/2 D) 4/5
 
Answer & Explanation Answer: C) 5/2

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Q:

Product of digits of a 2-digit number is 18. If we add 63 to the number, the new number obtained is a number formed by interchange of the digits. Find the number.

A) 92 B) 29
C) 36 D) 63
 
Answer & Explanation Answer: B) 29

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Q:

The 7th and 12th term of an arithmetic progression are -15 and 5 respectively. What is the 16th term?

A) 25 B) 29
C) 21 D) 33
 
Answer & Explanation Answer: C) 21

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