Number System 3√68921 = ? 31 41 21 51 31 41 21 51 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 3√68921= 3√41 x 41 x 41= 41
Number System What is the sum of all the composite numbers up to 20? 128 132 131 130 128 132 131 130 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 4 + 6 + 8 + 9 + 10 + 12 + 14 + 15 + 16 + 18 = 132
Number System The square root of 0.0081 is: 0.9 0.91 0.009 0.09 0.9 0.91 0.009 0.09 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 0.09
Number System When 732 is subtracted form the square of a number, the answer that is obtained is 5280. What is the number? 101 97 103 99 101 97 103 99 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x2 - 732 = 5280 x2 = 5280 + (70+3)2 = 5280 + 4900 + 420 + 9 = 10609= 10000 + 2(100)(3) + 32 = (100 + 3)2x = 100 + 3 = 103.
Number System What will be the next number in the following number series ? 191 162 182 177 191 162 182 177 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1² + 1, 3² + 3, 5² + 5, 7² + 7
Number System The difference between 78% of a number and 59% of the same number is 323. What is 62% of that number ? Rs. 945 Rs. 1054 Rs. 926 Rs. 986 Rs. 945 Rs. 1054 Rs. 926 Rs. 986 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.78% of x - 59% of x = 323= 78x - 59x/100 = 323= 19x/100 = 323∴ x = 323 x 100/19 = 1700= 62% of 1700 = 1700 x 62/100 = 1054
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