Number System If 5/7 of a number is 145, what is 180% of that number ? 355.4 375.4 345.4 365.4 355.4 375.4 345.4 365.4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 5/7 = 145∴ x = 145 x 7/5 = 203Now, 203 x 180/100 = 365.4
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 7/12 19/12 17/12 11/12 7/12 19/12 17/12 11/12 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7/12
Number System The difference between a two-digit number and the number obtained by interchanging the two digits is 63. Which is the smaller of the two numbers? Cannot be determined 29 92 70 Cannot be determined 29 92 70 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the ten's digit be x and units digit by y.Then,(10x + y) - (10y + x) = 639(x - y) = 63x - y = 7Thus, none of the numbers can be determined.
Number System If 1.5 x= 0.04 y, then the value of (y-x) (y+x) is: 77/73 73/77 83/77 93/77 77/73 73/77 83/77 93/77 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 73/77
Number System The difference between 68% of a number and 35% of the same number is 1216. What is 28% of the number ? 1031.75 1037.75 1027.75 1043.75 1031.75 1037.75 1027.75 1043.75 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be xTherefore 68x / 100 - 35x / 100 = 1216 Therefore x = 1216 x 100 / 33Therefore 28% of x = 28x / 100 = 1216 x 100 / 33 x 28 / 100= 1216 x 100 x 28 / 33 x 1/100 = 1031.75
Number System Two numbers are in the ratio 3:5. If 9 be subtracted from each, they are in the ratio of 9:17. The first number is: 36 27 30 18 36 27 30 18 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (3x-9):(5x-9) = 9:17 x = 12 => 3x = 36
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