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Quantitative Aptitude :: Number System Problems And Answers


Number System Formulaes

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41. The unit digit in 745 is
A. 3 B. 5
C. 0 D. 7
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42. The unit digit in (224 x 315 x 411) is
A. 4 B. 6
C. 8 D. 9
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43. The unit digit in (640 - 540) is
A. o B. 1
C. 3 D. 5
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44. If 1624 is divided by 17, the remainder is
A. 1 B. 3
C. 4 D. 8
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45. If 1624 is divided by 17, the remainder is
A. 1 B. 3
C. 4 D. 8
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46. (12 - 22 + 32 - 42 + 52 - 62) = ?
A. 11 B. -11
C. 10 D. None of these
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47. (74 + 75 + 76 + 77 + ..... + 149 + 150)  = ?
A. 8624 B. 8634
C. 8654 D. 8644
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48. (112 + 122 + 132 + ........+ 252) = ?
A. 7140 B. 6140
C. 5140 D. 8654
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49. 4524 - ? = 2456
A. 2058 B. 2069
C. 2072 D. None of these
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50. 3659 + 4117 = 6125 + ?
A. 1843 B. 1651
C. 1317 D. 1159
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Related Topics

Percentage
Time and Distance
Square Root and Cube Root
Area
Problems Based on Number
Simplication



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