Number System Complete the series : 1, 8, 27, 64, 125, 216 ..... 363 343 373 353 363 343 373 353 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 343
Number System If the difference between the squares of two consecutive numbers is 47, what is the smaller number ? 24 26 23 25 24 26 23 25 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 If 35% of a number is 899.5, what is 68% of that number ? 1547.6 2247.6 1847.6 1747.6 1547.6 2247.6 1847.6 1747.6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Suppose the number is x.Then 35% of x = 899.5∴ 68% of x = 68/35 x 899.5 = 1747.6
Number System How many figures are required for numbering the pages of a book containing 1000 pages? 6489 2893 3892 2883 6489 2893 3892 2883 ANSWER DOWNLOAD EXAMIANS APP
Number System What is the least number, which is perfect square but contains 2700 as its factor? 10800 1800 5400 2700 10800 1800 5400 2700 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 900 * 3 * 3 = 8100
Number System 7.8% of 12.5 + 2.5% of 161 = ? 5 9 12 2 5 9 12 2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7.8 x 12.5/100 + 2.5 x 161/100= 0.975 + 4.025= 5
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