# Aptitude  Number series  Practice Q&A

61. A number when divide by 6 leaves a remainder 3. When the square of the number is divided by 6, the remainder is:

 0 1 2 3

62. The sum of the two numbers is 12 and their product is 35. What is the sum of the reciprocals of these numbers ?

 $\dfrac{12}{35}$ $\dfrac{1}{35}$ $\dfrac{35}{8}$ $\dfrac{7}{32}$

63. What will be remainder when 17200 is divided by 18 ?

 17 16 1 2

64. If 1400 x $x$ = 1050. Then, $x$ = ?

 $\dfrac{1}{4}$ $\dfrac{3}{5}$ $\dfrac{2}{3}$ $\dfrac{3}{4}$

65. (12 + 22 + 32 + ... + 102) = ?

 330 345 365 385

66. The difference of the squares of two consecutive even integers is divisible by which of the following integers ?

 3 4 6 7

67. Which one of the following is a prime number ?

 119 187 247 None of these

68. The sum all even natural numbers between 1 and 31 is:

 16 128 240 512

69. The difference between the place value and the face value of 6 in the numeral 856973 is

 973 6973 5994 None of these

70. If a and b are odd numbers, then which of the following is even ?

 a + b a + b + 1 ab ab + 2