Number System (3² x 4² x 5) ÷ 36 = (?)² - 80 16 14 12 10 16 14 12 10 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 3² x 4² x 5/36 + 80= 20 + 80 = 100∴ ? = √100 = 10
Number System The sum of two numbers is 25 and their difference is 13. Find their product. 325 114 315 104 325 114 315 104 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x and y. Then x + y = 25 and x - y = 13.x = 19; y = 6xy = 19 * 6 = 114
Number System Supply the missing figure : 1, 4, 9, 16, 25 .... 49 36 23 42 16 36 23 42 16 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 36
Number System Which number should replace question mark (?) in the following equation ? ?/342 = 38/? 116 118 112 114 116 118 112 114 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 342 x 38Therefore, ? = √342 x 38 = √38 x 9 x 38 = 38 x 3 = 114
Number System Find the number, when 15 is subtracted from 7 times the number, the result is 10 more than twice of the number 7.5 15 5 4 7.5 15 5 4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.7x -15 = 2x + 10 => 5x = 25 => x = 5
Number System What is the sum of the local values of the digits 2, 3, 4, 5 in the number 2345? 2105 2345 2435 5243 2105 2345 2435 5243 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2000 + 300 + 40 + 5 = 2345
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