Number System What should come in place of (?) in the following series ? 10, 19, 30, 43, 58, ? 77 78 76 75 77 78 76 75 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The series is: +9, +11, +13, +15, +17
Number System The difference between 72% of a number and 49% of the same number is 575. What is 9% of that number ? 275 295 245 225 275 295 245 225 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be x.Therefore, 72% of x - 49% of x = 575Therefore, (72 - 49)% of x = 575Therefore, 9% of x = 575/23 x 9 = 225
Number System The product of two consecutive position odd numbers is 6723. What is the smaller number? 79 83 74 71 79 83 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 If 35% of a number is 899.5, what is 68% of that number ? 2247.6 1547.6 1747.6 1847.6 2247.6 1547.6 1747.6 1847.6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Suppose the number is x.Then 35% of x = 899.5∴ 68% of x = 68/35 x 899.5 = 1747.6
Number System A number when divided by 221 gives a remainder 43, what remainder will be obtained by dividing the same number 17? 10 5 9 11 10 5 9 11 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 221 + 43 = 264/17 = 9 (Remainder)
Number System The sum of the squares of three numbers is 138, while the sum of their products taken two at a time is 131. Their sum is: 40 None of these 20 30 40 None of these 20 30 ANSWER DOWNLOAD EXAMIANS APP
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