Number System What is the value of ? in the following equations ? 72/? = ?/50 100 40 60 80 100 40 60 80 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 72 x 50= (6 x 6 x 2) x (5 x 5 x 2)= (6 x 5 x 2)² = (60)²∴ ? = 60
Number System The product of two consecutive position odd numbers is 6723. What is the smaller number? 83 79 74 71 83 79 74 71 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP n x (n + 2) = 6723= n² + 2n - 6723 = 0= n² + 83n - 81n - 6723 = 0= n(n + 83) - 81 (n + 83) = 0Therefore, (n - 81) (n + 83) = 0Therefore, n = 81, n + 2 = 83
Number System 68375 + 72848 - ? = 34346 + 49569 57308 58308 None of these 59308 57308 58308 None of these 59308 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 68375 + 72848 - 34346 - 49569 = 141223 - 83915 = 57308
Number System 432+2170+35=? 729 494 678 523 729 494 678 523 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 494
Number System 666 / 6 / 3 = ? 333 84 37 111 333 84 37 111 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 666 * 1/6 * 1/3 = 37
Number System Find the number which multiplied by 15 is increased by 196. 26 14 28 20 26 14 28 20 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,15x - x = 196x = 14
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