Number System The average of five consecutive even numbers A, B, C, D and E is 54. What is the product of'B' and 'E' ? 2871 1456 3016 4098 2871 1456 3016 4098 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Because, The even numbers are consecutive and their average is 54.∴ The number C will be 54.∴ A = 50, B = 52, D = 56, E = 58B x E = 52 x 58 = 3016
Number System Complete the series : 1, 8, 27, 64, 125, 216 ..... 343 373 363 353 343 373 363 353 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 343
Number System 63.602 + 153.756 + 94.754 - 84.321 - 122.204 = ? 143.587 142.587 141.587 140.587 143.587 142.587 141.587 140.587 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 312.112 - 170.525 = 141.587
Number System If (72)² is subtracted from the square of a number, the answer thus obtained is 4617. What is the number ? 99 92 103 95 99 92 103 95 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x² - (72)² = 467Therefore, x² = 4617 + 5184Therefore, x² = 9801 Therefore, x = 99
Number System If 5/7 of a number is 145, what is 180% of that number ? 365.4 355.4 375.4 345.4 365.4 355.4 375.4 345.4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 5/7 = 145∴ x = 145 x 7/5 = 203Now, 203 x 180/100 = 365.4
Number System What least number should be added to 8602 to make it a perfect square ? 47 36 41 51 47 36 41 51 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP So, (93)² = 8649So, the required number to be added to make a perfect square = 8649 - 8602 = 47
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