Number System If (74)² is added to the square of a number the answer so obtained is 7780. What is the number ? 48 50 49 47 48 50 49 47 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.or, x² + (74)² = 7780or, x² = 7780 - 5476 = 2304∴ x = 48
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? 13 12 0 20 13 12 0 20 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number = (12 * 35) = 420Correct quotient = 420/21 = 20
Number System Complete the series : 11, 12, 17, 18, 23, 24 ... 12 None of these 30 14 12 None of these 30 14 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP None of these
Number System The difference between 72% of a number and 49% of the same number is 575. What is 9% of that number ? 245 295 275 225 245 295 275 225 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be x.Therefore, 72% of x - 49% of x = 575Therefore, (72 - 49)% of x = 575Therefore, 9% of x = 575/23 x 9 = 225
Number System Complete the series : 1, 8, 27, 64, 125, 216 ..... 373 353 343 363 373 353 343 363 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 343
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