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Which of the following is a prime number?

1. A 0
2. B 1
3. C 143
4. D 2

The sum of two numbers is 25 and their difference is 13. Find their product.

1. A 104
2. B 114
3. C 315
4. D 325

What is the least integer that is a sum of three different primes each greater than 20?

1. A 69
2. B 73
3. C 75
4. D 83

If x is an integer, then which of the following is must be odd?

1. A 13x
2. B 2x + 2
3. C 2x + 3
4. D x

If x is an integer, then which of the following is always an even integer?

1. A 2x + 2
2. B x + 1
3. C x + 2
4. D x - 1

The next number in the geometric progression 5, 10, 20 is:

1. A 25
2. B 40
3. C 45
4. D 50

A third of Karim’s marks is Mathematics exceeds a half of his marks in Social Studies by 30, if Karim got 240 marks in two subjects together, how many marks did he get in Social Studies?

1. A 122
2. B 60
3. C 88
4. D 98

If m and n are positive integers, which of the following must be an even integer?

1. A (m - 1)(n - 2)
2. B (n - 1)m
3. C n(m - 1)
4. D n(n - 1)(m - 1)

Find the missing number of the series 1/16, 1/4, -- , 4

1. A 1
2. B 1/2
3. C 16
4. D 4

What number should be devided by √0.25 to give the result as 25?

1. A 12.5
2. B 125
3. C 2.5
4. D 50

A number is selected at random from 40 to 50 inclusive. What is the probability that the number is prime number?

1. A 1/5
2. B 2/11
3. C 3/10
4. D 3/11

The sum of 6 consecutive odd numbers exceeds twice the largest by 38. Find the sum of the six numbers?

1. A 42
2. B 50
3. C 57
4. D 72