Number System The number of prime factors of (6)10×(7)17×(55)27 91 101 61 41 91 101 61 41 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 91
Number System What is the least number, which is perfect square but contains 2700 as its factor? 10800 1800 2700 5400 10800 1800 2700 5400 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 900 * 3 * 3 = 8100
Number System What is the sum of all the prime numbers from 20 to 40? 118 117 120 119 118 117 120 119 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 23 + 29 + 31 + 37 = 120
Number System Supply the missing figure : 3, 11, 8, 16, 13 .... 18 18 28 21 12 18 28 21 12 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 21
Number System How many numbers between 300 and 800 can be by using digits 2, 4, 5, 6 and 0 ? 52 36 56 48 52 36 56 48 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ∴ Reqd . numbers = 3 x 4P2 = 3 x 12 = 36
Number System The sum of the numbers is 264. If the first number be twice the second and third number be one-third of the first, then the second number is: 72 84 54 48 72 84 54 48 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the second number be x. Then, first number = 2x and third number = 2x/3.2x + x + 2x/3 = 26411x/3 = 264x = 72
EXAMIANS