121. How many different factors are there for the number 48, excluding 1 and 48?
(a) 12
(b) 4
(c) 8
(d) None of these
Ans : (c)
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122. What is the remainder when 9 + 92 + 93 + .... + 98 is divided by 6?
(a) 3
(b) 2
(c) 0
(d) 5
Ans : (c)
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123. The sum of the first 100 numbers, 1 to 100 is divisible by
(a) 2, 4 and 8
(b) 2 and 4
(c) 2 only
(d) None of these
Ans : (c)
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124. The sum of the first 100 numbers, 1 to 100 is divisible by
(a) 2, 4 and 8
(b) 2 and 4
(c) 2 only
(d) None of these
Ans : (c)
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125. For what value of 'n' will the remainder of 351n and 352n be the same when divided by 7?
(a) 2
(b) 3
(c) 6
(d) 4
Ans : (b)
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126. A person starts multiplying consecutive positive integers from 20. How many numbers should he multiply before the will have result that will end with 3 zeroes?
(a) 11
(b) 10
(c) 6
(d) 5
Ans : (c)
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127. What is the minimum number of square marbles required to tile a floor of length 5 metres 78 cm and width 3 metres 74 cm?
(a) 176
(b) 187
(c) 54043
(d) 748
Ans : (b)
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128. What number should be subtracted from x3 + 4x2 - 7x + 12 if it is to be perfectly divisible by x + 3?
(a) 42
(b) 39
(c) 13
(d) None of these
Ans : (a)
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129. Let x, y and z be distinct integers. x and y are odd and positive, and z is even and positive. Which one of the following statements cannot be true?
(a) (x-z)2y is even
(b) (x-z)y2 is odd
(c) (x-z)y is odd
(d) (x-y)2z is even
Ans : (a)
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130. Anita had to do a multiplication. Instead of taking 35 as one of the multipliers, she took 53. As a result, the product went up by 540. What is the new product?
(a) 1050
(b) 540
(c) 1440
(d) 1590
Ans : (d)
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