Number System Sum of the digits number is 8 and their product is 12. Find the difference between the digits? 2 None 4 6 2 None 4 6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 8xy = 12(x – y)2 = (x + y)2 – 4xy (x – y)2 = 64 – 48 => (x – y) = 4
Number System 65% of 320+?=686 480 478 479 481 480 478 479 481 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 65% of 320+?=686 208+?=686?=686-208?=478
Number System (12.11)2 + (?)2 = 732.2921 14.2 17.2 24.2 20.2 14.2 17.2 24.2 20.2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 24.2
Number System In how many different ways can the letters of the word 'LEASE' be arranged ? 60 40 80 None of these 60 40 80 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 The number of prime factors of (6)10×(7)17×(55)27 61 41 101 91 61 41 101 91 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 91
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