Number System In how many different ways can the letters of the word CORPORATION be arranged ? None of these 1326400 3326400 2326400 None of these 1326400 3326400 2326400 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP CORPORATION = 11 letters 'O' comes thrice,'R' twice.∴ total no. of ways = 111/3121 = 3326400
Number System (√6 + 1)² = ? + 2√6 5 7 6 8 5 7 6 8 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = (√6 + 1)² - 2√6= (√6)² + 2 x √6 + 1 + 1² - 2√6= 6 + 2√6 + 1 - 2√6 = 6 + 1 = 7
Number System The difference between a two-digit number and the number obtained by interchanging its two digits is 45. The sum of the digit of the number is 9. What is the product of the two digits of the number? 12 14 13 15 12 14 13 15 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be 10x + y.Therefore, x + y = 9 ..................(i)10x + y - (10y + x) = 4510x + y - 10y - x = 45Therefore, x - y = 5 ..................(ii)From (i) and (ii), x = 7, y = 2Number = 72Therefore, = x x y = 7 x 2 = 14
Number System If a number is subtracted from its square we get 272. Find the number? 17 22 24 14 17 22 24 14 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x2 – x = 272 => x =17
Number System Complete the series : 1, 8, 27, 64, 125, 216 ..... 353 363 343 373 353 363 343 373 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 343
Number System Which choice provides the answer in the following : If 2 * 3 = 36, 5 * 4 = 400, 6 * 2 = 144, 3 * 3 = 81; then, 5 * 5 = ? 425 625 325 525 425 625 325 525 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 625
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