Number System If the difference between a number and two-fifths of that number is 45 what is the number ? 76 78 77 75 76 78 77 75 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x ∴ x - 2x/5 = 45∴ x = 75
Number System 3√68921 = ? 31 41 51 21 31 41 51 21 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 3√68921= 3√41 x 41 x 41= 41
Number System What least number shall be added to 4700 to make it a perfect square ? 81 71 91 61 81 71 91 61 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (69)² = 4761 and (68)² = 4624Clerly 4624 < 4700 < 4761So 61 should be added to make 4700 a perfect square.
Number System If the fractions8/5,7/2,9/5,5/4,4/5 are arranged in descending order of their values, which one will be fourth? 5/4 1/3 11/13 7/9 5/4 1/3 11/13 7/9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 5/4
Number System (12)² - (4.4)² - (0.04)² = ? 124.6384 131.6384 125.6384 129.6384 124.6384 131.6384 125.6384 129.6384 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (12)² - (4.4)² - (0.04)²= 144 - 19.36 - 0.0016= 124.64 - 0.0016= 124.6384
Number System ?2704 x ?2209=? 1444 4444 2444 3444 1444 4444 2444 3444 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2444
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