Number System When (21)² is subtracted from the square of a number the answer obtained is 1584. What is the number ? 65 45 35 55 65 45 35 55 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.According to the question,x² - (21)² = 1584= x² - 441 = 1584 = x² = 1584 + 441 = 2025∴ x = √2025 = 45
Number System In a division sum, the remainder is 0. As student mistook the divisor by 12 instead of 21 and obtained 35 as quotient. What is the correct quotient? 20 0 13 12 20 0 13 12 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number = (12 * 35) = 420Correct quotient = 420/21 = 20
Number System What is the missing number in this series? 8 2 14 6 11 ? 14 6 18 12 7 2 9 3 7 2 9 3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 9
Number System Of an amount, 20% of 25% of 30% is Rs 75. Then what is the original amount ? Rs. 2000 Rs. 4000 Rs. 5000 Rs. 3000 Rs. 2000 Rs. 4000 Rs. 5000 Rs. 3000 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the amount be x.∴ X x 20/100 x 25/100 x 30/100 = 75∴ X = 75 x 5 x 4 x 10/3 = 5000
Number System Find the greatest four digit number which leaves respective remainders of 2 and 5 when divided by 15 and 24. 9565 None of these 9125 9974 9565 None of these 9125 9974 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 Find out the smallest possible number which will be divisible by 1122 as well as 153. 1366 3366 2366 4366 1366 3366 2366 4366 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3366
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