Number System A number when divided by 221 gives a remainder 43, what remainder will be obtained by dividing the same number 17? 10 5 11 9 10 5 11 9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 221 + 43 = 264/17 = 9 (Remainder)
Number System In how many different ways can the letters of word "SENTENCE" be arranged ? 3260 2360 3360 6460 3260 2360 3360 6460 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number of ways = 8!/3! 2! = 40320/12 = 3360
Number System If a number is subtracted from its square we get 272. Find the number? 22 24 14 17 22 24 14 17 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x2 – x = 272 => x =17
Number System What least number should be added to 8602 to make it a perfect square ? 51 47 41 36 51 47 41 36 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP So, (93)² = 8649So, the required number to be added to make a perfect square = 8649 - 8602 = 47
Number System If (83)² is subtracted from the square of a number, the answer so obtained is 8487. What is the number ? 124 179 163 146 124 179 163 146 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x Therefore, x² - (83)² = 8487x² = 8487 + (83)²x² = 8487 + 6889x² = 15376Therefore, x² = 15376 x = 124
Number System Supply the missing figure : 2, 6, 12, 20, 30 ... 56 39 40 42 41 39 40 42 41 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 42
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