Number System Two-third of a positive number and 25/216 of its reciprocal are equal. The number is: 144/25 12/5 5/12 25/144 144/25 12/5 5/12 25/144 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,2/3 x = 25/216 * 1/xx2 = 25/216 * 3/2 = 25/144 x = 5/12
Number System The sum of three consecutive even numbers is 252. What is the sum of the smallest and the largest numbers? 170 168 169 171 170 168 169 171 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 168
Number System Four-fifth of a number is 10 more than two-third of the same number. What is the number? 75 89 91 35 75 89 91 35 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 75
Number System If a number is subtracted from its square we get 272. Find the number? 14 17 24 22 14 17 24 22 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x2 – x = 272 => x =17
Number System If the difference between the squares of two consecutive numbers is 47, what is the smaller number ? 24 25 23 26 24 25 23 26 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be (x + 1) and x.Therefore, (x + 1)² - x² = 47x² + 2x + 1 - x² = 472x + 1 = 47Therefore, x = 46/2 = 23
Number System Complete the series : 1, 8, 27, 64, 125, 216 ..... 373 363 343 353 373 363 343 353 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 343
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