Number System

76. What is the next number in the series 1, 4, 9, 16, ....?

• ক. 18
• খ. 21
• গ. 23
• ঘ. 25

77. 1 + 2 + 3 + ........ + 100 =?

• ক. 5000
• খ. 5055
• গ. 5550
• ঘ. 5050

78. What is the next number in the series? 5, 3, 1, 7, 3, 2, 9, 5, ...

• ক. 1
• খ. 5
• গ. 4
• ঘ. 3

79. Which of the next number in the series? 2, 5, 7, 8, 8, ......

• ক. 6
• খ. 7
• গ. 10
• ঘ. 11

80. Find the next number in the series: 3, 6, 4, 9, 5, 12, 6, ...

• ক. 7
• খ. 9
• গ. 12
• ঘ. 15

81. What is the next number in the series? 8, 11, 17, 24, 29, 53, 78, ....

• ক. 102
• খ. 101
• গ. 75
• ঘ. 83

82. 3, 9, 5, 11, 7, ...

• ক. 9
• খ. 10
• গ. 13
• ঘ. 15

83. 1, 2, 3, 5, 7, ......

• ক. 9
• খ. 11
• গ. 14
• ঘ. 16

84. 2, 9, 6, 7, 18, 5, ....

• ক. 25
• খ. 40
• গ. 54
• ঘ. 90

85. 8, 14, 24, 42, ......, 142

• ক. 76
• খ. 84
• গ. 100
• ঘ. 112

86. The first 5 numbers in a regular esquence are 4, 10, 22, 46 and 94. What is the next number in the sequence?

• ক. 190
• খ. 182
• গ. 176
• ঘ. 154

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

• ক. 45
• খ. 40
• গ. 50
• ঘ. 25

88. Sum of 3 consucutive integers is 18. What is the smallest integer less 3?

• ক. 4
• খ. 5
• গ. 2
• ঘ. 3

89. The average of 15 consecutive integers is 15. What is the smallest of the 15 integers?

• ক. 8
• খ. 9
• গ. 15
• ঘ. 6

90. What is the next number in the series 1, 11, 27, 57, ...

• ক. 93
• খ. 63
• গ. 123
• ঘ. 113

91. Average of 17 even consecutive iintegers is 42. What is the 3rd number from the begining of the series when the integers are arranged in an increasing sequence?

• ক. 32
• খ. 34
• গ. 36
• ঘ. 28

92. Every sunday Akbar jogs 3 miles. For the rest of the week, each day he jogs 1 mile more than the previous day. How many miles does Akbar jog in 2 weeks?

• ক. 80
• খ. 84
• গ. 98
• ঘ. 42

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

• ক. 57
• খ. 72
• গ. 42
• ঘ. 50

94. The larger of two numbers exceeds twice the smaller number by 9. The sum of twice the larger and 5 times the smaller is 74. If a is the sum of the smaller number, which equation below determines the correct value of a?

• ক. 5(2a + 9) + 2a = 74
• খ. 5(2a - 9) + 2a = 74
• গ. (4a + 9) + 5a = 74
• ঘ. 2(2a + 9) + 5a = 74

95. Find the probability of selecting a prime number from a set numbers 1 to 15 (both inclusive).

• ক. 1/15
• খ. 3/5
• গ. 2/5
• ঘ. 7/15

96. Which set of numbers is like the given set [48, 24, 12]?

• ক. [46, 22, 11]
• খ. [44, 22, 10]
• গ. [42, 20, 10]
• ঘ. [40, 20, 10]

97. If product of two sequential positive odd numbers is 255, what are those numbers?

• ক. 11, 13
• খ. 13, 15
• গ. 13, 17
• ঘ. 15, 17

98. 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?

• ক. 88
• খ. 98
• গ. 60
• ঘ. 122

99. The least number of 4 digits which is a perfect square, is:

• ক. 1000
• খ. 1016
• গ. 1024
• ঘ. 1036

100. The average of 7 consecutive number is 20. The largest of these number is:

• ক. 20
• খ. 22
• গ. 23
• ঘ. 24