Number System The difference between 68% of a number and 35% of the same number is 1216. What is 28% of the number ? 1037.75 1027.75 1043.75 1031.75 1037.75 1027.75 1043.75 1031.75 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 If (35)² is added to the square of a number the answer so obtained is 1394. What is the number ? 17 13 11 15 17 13 11 15 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x Therefore, x² + (35)² = 1394Therefore, x² = 1394 - (35)² = 1394 - 1225 = 169Therefore, x = √169 = 13
Number System (4 86%of 6500) ÷ 36 =? 977.5 777.5 677.5 877.5 977.5 777.5 677.5 877.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 877.5
Number System The sum of the two digits of a two-digit number is 15 and the difference between the two digits of the two digit number is 3. What is the product of the two digits of the two digit number ? 36 None of these 14 54 36 None of these 14 54 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be 10 x + yWhere x > yAccording to the question,x + y = 15 and x - y = 3Solving both the equations,x = 9, y = 6∴ x x y = 9 x 6 = 54
Number System The number of prime factors of (6)10×(7)17×(55)27 101 41 91 61 101 41 91 61 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 91
EXAMIANS