Number System (4.6 x 2.8 x 5.5) - (3.2 x 4.5 x 2.8) = ? 29.81 30.52 27.54 28.56 29.81 30.52 27.54 28.56 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = (4.6 x 2.8 x 5.5) - (3.2 x 4.5 x 2.8) = 70.84 - 40.32 = 30.52
Number System If (72)² is subtracted from the square of a number, the answer thus obtained is 4617. What is the number ? 95 103 99 92 95 103 99 92 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x² - (72)² = 467Therefore, x² = 4617 + 5184Therefore, x² = 9801 Therefore, x = 99
Number System 450% of a number is 4725. What is 82% of that number ? 841 871 851 861 841 871 851 861 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 450/100 = 4725= x = 4725 x 100/450 = 1050∴ 82% of 1050 = 1050 x 82/100= 861
Number System On multiplying a number by 7, the product is a number each of whose digits is 3. The smallest such number is: 47719 48619 47649 47619 47719 48619 47649 47619 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP By hit and trail, we find that47619 * 7 = 333333.7) 333333 (47619 333333---------------- 0
Number System Find the greatest four digit number which leaves respective remainders of 2 and 5 when divided by 15 and 24. 9565 9974 9125 None of these 9565 9974 9125 None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Since the difference between the divisors and the respective remainders is not constant, back substitution is the convenient method. None of the given numbers is satisfying the condition.
Number System What is the sum of all even numbers from 1 to 701? 122550 122500 123850 122850 122550 122500 123850 122850 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 700/2 = 350350 * 351 = 122850
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