Number System The difference between 8% of a number and 3% of the same number is 39. What is 2.8% of that number ? 24.84 25.84 21.84 27.84 24.84 25.84 21.84 27.84 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x(8 - 3)% = 39x = 3900/5 = 780∴ 2.8% of 780= 780 x 2.8/100 = 21.84
Number System √(17)² + (17)² + (5)² - 2 = ? 17 19 16 18 17 19 16 18 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √49 + 289 + 25 - 2 = √361 = 19
Number System Find the greatest number which leaves the same remainder when it divides 25, 57 and 105. 12 8 16 18 12 8 16 18 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 105 - 57 = 4857 - 25 = 32105 - 25 = 80The H.C.F of 32, 48 and 80 is 16.
Number System In how many different ways can the letters of word "SENTENCE" be arranged ? 3360 2360 3260 6460 3360 2360 3260 6460 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number of ways = 8!/3! 2! = 40320/12 = 3360
Number System 732.96 + 405.38 - 604.08 - 105.44 + 222.86 = ? 621.68 651.68 641.68 631.68 621.68 651.68 641.68 631.68 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 1361.20 - 709.52 = 651.68
Number System In how many different ways can the letters of the word 'LEASE' be arranged ? 40 60 None of these 80 40 60 None of these 80 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The world LEASE consists of 5 letters in which E comes twice ∴ 51/21 = 5x4x3x2x1/2x1 = 60
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