Number System The number of prime factors of (6)10×(7)17×(55)27 61 91 101 41 61 91 101 41 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 91
Number System In a two-digit number, if it is known that its unit's digit exceeds its ten's digit by 2 and that the product of the given number and the sum of its digits is equal to 144, then the number is: 42 46 26 24 42 46 26 24 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the ten's digit be x. Then, unit's digit = x + 2. Number = 10x + (x + 2) = 11x + 2 Sum of digits = x + (x + 2) = 2x + 2 (11x + 2)(2x + 2) = 144 2x2 + 26x - 140 = 0 (x - 2)(11x + 35) = 0 x = 2Hence, required number = 11x + 2 = 24.
Number System In how many different ways can the letters of the word 'LEASE' be arranged ? 60 80 40 None of these 60 80 40 None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The world LEASE consists of 5 letters in which E comes twice ∴ 51/21 = 5x4x3x2x1/2x1 = 60
Number System (164 x 175) x ? = 258300 2 11 5 9 2 11 5 9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 258300 / 164 x 175 = 9
Number System The difference between two integers is 5. Their product is 500. Find the numbers. 20, 25 30, 25 15, 20 21, 26 20, 25 30, 25 15, 20 21, 26 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the integers be x and (x + 5). Then, x(x + 5) = 500 x2 + 5x - 500 = 0 (x + 25)(x - 20) = 0 x = 20So, the numbers are 20 and 25.
Number System Which choice provides the answer : If 2 + 3 = 10, 6 + 5 = 66, 7 + 2 = 63, 9 + 7 = 144 then, 8 + 4 = ? 114 102 96 88 114 102 96 88 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 96
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