Number System Find the smallest number which should be multiplied with 520 to make it a perfect square. None of these 120 55 30 None of these 120 55 30 ANSWER DOWNLOAD EXAMIANS APP
Number System The difference between a two-digit number and the number obtained by interchanging the digits is 36. What is the difference of the two digits of the number ? 2 1 4 3 2 1 4 3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (10x + y) - (10y + x) = 36,9(x - y) = 36/9 = 4
Number System Which one of the following is the sum of the numbers 1, 3, 5, 7, 9…. up to nth number? N2 N(N + 1)/2 N(N + 1) N2 + 1 N2 N(N + 1)/2 N(N + 1) N2 + 1 ANSWER DOWNLOAD EXAMIANS APP
Number System 65 x 288 ÷ 52 = 1.8 x ? 210 180 200 190 210 180 200 190 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 65x288/52x1.8 = 200
Number System 2/11 of 3/7 of 8/13 of 12012 = ? 241 576 449 321 241 576 449 321 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 2 x 3 x 8 x 12012/11 x 7 x 13 = 576
Number System If a number is multiplied by. three-fourth of itself, the value thus obtained is 10800. What is that number ? 60 180 120 260 60 180 120 260 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 3x/4 = 10800= x² = 10800 x 4/3 = 14400∴ x = √14400 = 120
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