Number System The product of two consecutive position odd numbers is 6723. What is the smaller number? 74 71 83 79 74 71 83 79 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 Twenty times a positive integer is less than its square by 96. What is the integer? 20 30 Cannot be determined 24 20 30 Cannot be determined 24 ANSWER DOWNLOAD EXAMIANS APP
Number System {(742)² ÷ 36} ÷ 2 = ? 422.5 420.5 421.5 423.5 422.5 420.5 421.5 423.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = (174 x 174/36) ÷ 2 = 841/2 = 420.5
Number System What is the value of ? in the following equations ? 72/? = ?/50 100 60 80 40 100 60 80 40 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 Sum of two numbers is 15. Two times of the first exceeds by 5 from the three times of the other. Then the numbers will be? 9, 6 7, 8 6, 9 10, 5 9, 6 7, 8 6, 9 10, 5 ANSWER DOWNLOAD EXAMIANS APP
Number System (800 / 64) * (1296 / 36) = ? None of these 500 460 420 None of these 500 460 420 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given Exp.= 800/64 * 1296/36 = 12.5 * 36 = 450
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