Number System What is the least number that should be added to 5200 to make it a perfect square ? 288 129 225 275 288 129 225 275 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP We sec (73)² = 5329 and (72)² = 5184ie 5329 > 5200 > 5184So 129 should be added to make is perfect square.
Number System The sum of four consecutive even numbers is 36. Find the sum of the squares of these numbers? 344 296 252 388 344 296 252 388 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the four numbers be x, x + 2, x + 4 and x + 6.=> x + x + 2 + x + 4 + x + 6 = 36=> 4x + 12 = 36 => x = 6The numbers are 6, 8, 10 and 12.Sum of their squares = 62 + 82 + 102 + 122 = 36 + 64 + 100 + 144 = 344.
Number System 68375 + 72848 - ? = 34346 + 49569 None of these 59308 58308 57308 None of these 59308 58308 57308 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 68375 + 72848 - 34346 - 49569 = 141223 - 83915 = 57308
Number System In how many different ways can the letters of the word 'FRUGAL'be arranged ? 515 556 720 660 515 556 720 660 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In FRUGAL there ae six difference letters Therefore, 6 ! = 6 x 5 x 4 x 3 x 2 x 1 = 720
Number System Complete the series : 11, 12, 17, 18, 23, 24 ... 30 None of these 14 12 30 None of these 14 12 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP None of these
Number System 7432 ÷ 32 x ? = 2787 78 41 12 21 78 41 12 21 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7432/32 x ? = 2787= ? = 2787 x 32/7432 = 12
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