Number System How many figures are required to number the pages the pages of a book containing 365 pages? 977 897 967 987 977 897 967 987 ANSWER DOWNLOAD EXAMIANS APP
Number System In how many different ways can the letters of the word 'DETERMINE' be arranged ? 60480 62480 63480 61480 60480 62480 63480 61480 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP No. of arrangements = 9! / 3! Because, E comes 3 times = 60480
Number System If a number is subtracted from its square we get 272. Find the number? 24 14 22 17 24 14 22 17 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x2 – x = 272 => x =17
Number System A bag contains four red, six black and seven green balls. Three balls are drawn randomly. What is the probability that the balls drawn contain exactly two red balls ? 45/340 58/340 39/340 51/340 45/340 58/340 39/340 51/340 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Total balls = 4 + 6 + 7 = 17∴ n(S) = 17C1 = 680Two red balls can be selected from four red balls in 4C2 = 6 ways.and the third ball can be selected from the remaining 13 balls in 13C1 = 13 ways.∴ P (E) = 13x6/680 = 39/340
Number System The difference between 72% of a number and 49% of the same number is 575. What is 9% of that number ? 275 245 225 295 275 245 225 295 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be x.Therefore, 72% of x - 49% of x = 575Therefore, (72 - 49)% of x = 575Therefore, 9% of x = 575/23 x 9 = 225
Number System If HKUJ means FISH, what does UVCD mean ? STAB STAM STAR STAK STAB STAM STAR STAK ANSWER EXPLANATION DOWNLOAD EXAMIANS APP STAB
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