Number System What is the value of ? in the following equations ? 72/? = ?/50 40 100 80 60 40 100 80 60 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 20% of the total number of students in a school play football. How many students do not play football if the total number of students in the school is 7600 ? 6080 5800 6000 5976 6080 5800 6000 5976 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 20% of 7600 = 1520Therefore, students who do not play football = 7600 - 1520 = 6080
Number System Given √2 = 1.414, the value of √8 + 2√32 - 3√128 + 4√50 is 8.784 8.484 8.584 8.684 8.784 8.484 8.584 8.684 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8.484
Number System A certain number of two digits is three times the sum of its digits. If 45 be added to it, the digits are reversed. The number is: 24 22 27 30 24 22 27 30 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 27
Number System √207.36 = ? 16.7 12.3 14.4 15.7 16.7 12.3 14.4 15.7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP √207.36 = √20736/√100 = 144/10 = 14.4
Number System 84 * 29 + 365 = ? - 2801 2436 2801 - 2071 - 2801 2436 2801 - 2071 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP - 84 * (30 - 1) + 365= - (84 * 30) + 84 + 365= - 2520 + 449 = - 2071
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