Number System (1024—263—233)÷(986—764— 156) =? 6 8 10 None of these 6 8 10 None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8
Number System The sum of four consecutive even numbers is 36. Find the sum of the squares of these numbers? 388 344 296 252 388 344 296 252 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the four numbers be x, x + 2, x + 4 and x + 6.=> x + x + 2 + x + 4 + x + 6 = 36=> 4x + 12 = 36 => x = 6The numbers are 6, 8, 10 and 12.Sum of their squares = 62 + 82 + 102 + 122 = 36 + 64 + 100 + 144 = 344.
Number System How many figures are required for numbering the pages of a book containing 1000 pages? 6489 2883 2893 3892 6489 2883 2893 3892 ANSWER DOWNLOAD EXAMIANS APP
Number System A number when, 28 subtracted from it reduces to its one third. What is the value of 50% of that number? 84 42 21 24 84 42 21 24 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2/3 x = 28 => x = 4242 * 1/2 = 21
Number System If (72)² is subtracted from the square of a number, the answer thus obtained is 4617. What is the number ? 95 92 103 99 95 92 103 99 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x² - (72)² = 467Therefore, x² = 4617 + 5184Therefore, x² = 9801 Therefore, x = 99
Number System The sum of three consecutive numbers is 87. The greatest among these three number is: 30 29 26 28 30 29 26 28 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x, x + 1 and x + 2 Then,x + (x + 1) + (x + 2) = 873x = 84x = 28Greatest number, (x + 2) = 30.
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