Number System Supply the missing figure : 2, 6, 12, 20, 30 ... 56 42 40 41 39 42 40 41 39 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 42
Number System If the sum of the two numbers is 22 and the sum of their squares is 404, then the product of the numbers is: 44 80 40 88 44 80 40 88 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x and y. Then, (x + y) = 22 and x2 + y2 = 404 Now, 2xy = (x + y)2 - (x2 + y2) 2xy= 222 - 404 = 484 - 404 = 80xy = 40
Number System The difference between 78% of a number and 59% of the same number is 323. What is 62% of that number ? Rs. 926 Rs. 1054 Rs. 986 Rs. 945 Rs. 926 Rs. 1054 Rs. 986 Rs. 945 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.78% of x - 59% of x = 323= 78x - 59x/100 = 323= 19x/100 = 323∴ x = 323 x 100/19 = 1700= 62% of 1700 = 1700 x 62/100 = 1054
Number System 93296 - 45874 + 20382 - 56817 = ? 109887 109867 109877 109857 109887 109867 109877 109857 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 113678 - 102691 = 109887
Number System How many figures are required for numbering the pages of a book containing 1000 pages? 6489 2893 3892 2883 6489 2893 3892 2883 ANSWER DOWNLOAD EXAMIANS APP
Number System Supply the missing figure : 1, 4, 9, 16, 25 .... 49 42 23 36 16 42 23 36 16 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 36
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