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Home SAT Math Arithmetic MCQ Prime Numbers
Prime Numbers
Exercise
1. Which of the following is true?
i. 2 is an even prime
ii. 5, 7 are twin primes
iii. 2, 3 are co–primes
  a)  i, ii b) ii, iii c)  i, iii d) i, ii, iii
 
2. How many 2 digit numbers are there below 100?
  a) 89 b)  91 c)  90 d)  92
 
3. How many multiples of 3 are there below 100?
  a)  32 b) 31 c)  33 d) 34
 
4. If sum of first twelve odd numbers are added to sum of first twelve even numbers then their sum is
  a)  306 b)  304 c)  302 d)  300
 
5. If 8888 + 7777 + 6666 + X = 29000
then the missing X is
  a)  5659 b)  6669 c)  5669 d)  7669
 
6. If 17 × (a + 23) = b × (87 + c) then a + b + c =
  a)  117 b)  137 c)  127 d)  147
 
7. If then a =
  a)  86 b)  84 c)  74 d)  76
 
8. The sum of first five prime numbers is
  a)  28 b)  27 c)  29 d)  30
 
9. Which of the following is/ are false ?
i. If a = – 75 then – a = 75
ii. If a + 0 = 0 then a = 0
iii. If b × 1 = 8 then b = 8
  a)  i, ii b)  ii, iii c)  i, iii d)  None of these
 
10. If 8 × A + 7 × B + 6 × C + 7 × D + 4 = 87674 then A + B + C + D + 4 =
  a)  11124 b)  11104 c)  11114 d)  11134
 
11. The expanded form of 7032
  a)  7 × 1000 + 3 × 100 + 20 b)  7 × 1000 + 0 × 100 + 3 × 10 + 2
  c)  7 × 1000 + 3 × 100 + 2 d)  none of these
 
12. If 57347 + a   is a successor of 57356
34896 + b   is a 5 predecessor of 35908 then a + b + ab + (b – a) =
  a)  132 b)  133 c)  134 d)  135
 
13. On dividing 59761 by a certain number the quotient is 189 and the remainder is 37. Find the divisor
  a)  314 b)  312 c)  316 d)  318
 
14. Find the number which is nearest to 3006 and exactly divisible by 29
  a) 3014 b)  3018 c)  3016 d)  3016