Number System The difference between 72% of a number and 49% of the same number is 575. What is 9% of that number ? 245 295 225 275 245 295 225 275 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 5358 * 51 = ? 273358 273268 273348 273258 273358 273268 273348 273258 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 5358 * 51 = 5358 * (50 + 1) = 5358 * 50 + 5358 * 1= 267900 + 5358 = 273258
Number System Sum of two consecutive even terms lacks by 98 from their product. Find the sum of these number 24 32 18 None 24 32 18 None ANSWER DOWNLOAD EXAMIANS APP
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: None of these 40 30 20 None of these 40 30 20 ANSWER DOWNLOAD EXAMIANS APP
Number System {3√4913}² = ? 121 289 225 333 121 289 225 333 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = (3√4913)² = (17)² = 289
Number System The sum of the digits of a two-digit number is 12, and the difference between the number and the number obtained by interchanging the two digits of the number is 18. Find the number. 12.5 25 50 75 12.5 25 50 75 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be 10x + y.∴ x + y = 12 ...........(i)10x + y - (10x + x) = 18or 10x + y - 10y - x = 18or 9x - 9y = 18∴ x - y = 2From (i) and (ii), x = 7, y = 5∴ Number = 75
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