Number System Find the number, when 15 is subtracted from 7 times the number, the result is 10 more than twice of the number 5 4 15 7.5 5 4 15 7.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.7x -15 = 2x + 10 => 5x = 25 => x = 5
Number System 3√103823 = ? 44 41 52 47 44 41 52 47 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 3√103823 = 3√47 x 47 x 47 = 47
Number System Find the number of factors of 300 excluding 1 and itself. 18 14 16 15 18 14 16 15 ANSWER DOWNLOAD EXAMIANS APP
Number System The sum of two numbers is 22. Five times one number is equal to 6 times the other. The bigger of the two numbers is: 12 10 15 16 12 10 15 16 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x and (22 - x). Then,5x = 6(22 - x) 11x = 132 => x = 12So, the numbers are 12 and 10.
Number System In a fraction, twice the numerator is two more than the denominator. If 3 is added to the numerator and the denominator each, then the resultant fraction will be 2/3 .What was the original fraction 19/12 17/12 7/12 11/12 19/12 17/12 7/12 11/12 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7/12
Number System The difference between 72% of a number and 49% of the same number is 575. What is 9% of that number ? 295 245 225 275 295 245 225 275 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
EXAMIANS