Number System If (17)3 is subtracted from the square of a number, the answer so obtained is 2143. What is the number ? 84 82 81 83 84 82 81 83 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x² - (17*17*17) = 2143or x² = 2143 + 4913 = 7056∴ x = 84
Number System What should come in the place of question mark (?) in the number series given below? 159 158 160 157 159 158 160 157 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 160
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 ? 1 4 2 3 1 4 2 3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (10x + y) - (10y + x) = 36,9(x - y) = 36/9 = 4
Number System Find the least number when successively divided by 2, 3 and 7 leaves remainders 1, 2 and 3 respectively? 67 75 61 65 67 75 61 65 ANSWER DOWNLOAD EXAMIANS APP
Number System Twenty times a positive integer is less than its square by 96. What is the integer? 30 24 20 Cannot be determined 30 24 20 Cannot be determined ANSWER DOWNLOAD EXAMIANS APP
Number System 7432 ÷ 32 x ? = 2787 21 78 12 41 21 78 12 41 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7432/32 x ? = 2787= ? = 2787 x 32/7432 = 12
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