Number System In how many different ways can the letters of the word CORPORATION be arranged ? 1326400 2326400 3326400 None of these 1326400 2326400 3326400 None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP CORPORATION = 11 letters 'O' comes thrice,'R' twice.∴ total no. of ways = 111/3121 = 3326400
Number System If the L.C.M of two numbers is 750 and their product is 18750, find the H.C.F of the numbers. 25 125 30 50 25 125 30 50 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP H.C.F = (Product of the numbers) / (Their L.C.M) = 18750/750 = 25.
Number System The product of two natural numbers is 17. Then, the sum of the reciprocals of their squares is: 289 290/289 1/289 289/290 289 290/289 1/289 289/290 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be a and b. Then,ab = 17, a = 1 and b = 17So, 1/a2 + 1/b2 = (a2 + b2)/a2 b2 = (12 + 172)/(1 * 17)2 = 290/289
Number System A certain number when divided by 45 leaves a remainder 31, what is the remainder if the same number be divided by 15? 1 11 9 13 1 11 9 13 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 45 + 31 = 76/15 = 1 (Remainder)
Number System Complete the series : 1, 8, 27, 64, 125, 216 ..... 353 343 373 363 353 343 373 363 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 343
Number System Three times the first of three consecutive odd integers is 3 more than twice the third. The third integer is: 13 11 15 9 13 11 15 9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the three integers be x, x + 2 and x+ 4.Then,3x = 2(x + 4) + 3x = 11Third integer = x + 4 = 15.
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