Question 1:
Mathematics (8)
7120 is not divisible by
Correct Answer: C (6)C
Question 2:
Mathematics (8)
9×8071 is divisible by 11. The value of the missing digit is
Correct Answer: B (1)B
Question 3:
Mathematics (8)
Without actual division, which of the following numbers is exactly divisible by 2, 3 and 5?
Correct Answer: C (3540)C
Question 4:
Mathematics (8)
The number 15938* is divisible by 6. The unknown non-zero digit marked as * will be
Correct Answer: C (4)C
Question 5:
Mathematics (8)
If a number is divisible by both 5 and 8, then it must necessarily be divisible by
Correct Answer: C (5 x 8)C
Question 6:
Mathematics (8)
432650 is not divisible by
Correct Answer: D (4)D
Question 7:
Mathematics (8)
Identify which number pairs are relatively prime?
21, 32 II. 30, 36 III. 49, 72
Correct Answer: C (I and III)C
Question 8:
Mathematics (8)
Which of the following is a pair of twin primes between 50 and 70?
Correct Answer: C (59, 61)C
Question 9:
Mathematics (8)
Which of the following is a pair of coprimes?
Correct Answer: B (18, 35)B
Question 10:
Mathematics (8)
The least prime number with consecutive digits is
Correct Answer: B (23)B
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