Number System (12)² - (4.4)² - (0.04)² = ? 131.6384 129.6384 124.6384 125.6384 131.6384 129.6384 124.6384 125.6384 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 In a pair of fractions, fraction A is twice the fraction B and the product of two fractions is 2/25. What is the value of fraction A? 1/25 1/5 2/5 Data inadequate 1/25 1/5 2/5 Data inadequate ANSWER EXPLANATION DOWNLOAD EXAMIANS APP A = 2B => B = 1/2 A, so, AB = 2/25 1/2 A2 = 2/25A2 = 4/25 A = 2/5
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 Find the average of the following set of scores 450, 1050, 12, 390, 143, 286, 550, 999 485 495 490 480 485 495 490 480 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Required average score = (450 + 1050 + 12 + 390 + 143 + 286 + 550 + 999) / 8 = 3880 / 8 = 485
Number System How many of the following numbers are divisible by 132? 264, 396, 462, 792, 968, 2178, 5184, 6336 6 4 7 5 6 4 7 5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 132 = 11 * 3 * 4Clearly, 968 is not divisible by 3None of 462 and 2178 is divisible by 4And, 5284 is not divisible by 11Each one of the remaining four numbers is divisible by each one of 4, 3 and 11.So, there are 4 such numbers.
Number System What is the missing number in this series? 8 2 14 6 11 ? 14 6 18 12 7 3 2 9 7 3 2 9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 9
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