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 3251 + 587 + 369 - ? = 3007 1250 1375 1300 1200 1250 1375 1300 1200 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let 4207 - x = 3007 Then, x = 4207 - 3007 = 1200
Number System 3√68921 = ? 41 21 51 31 41 21 51 31 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 3√68921= 3√41 x 41 x 41= 41
Number System Write the next number in the series : 14, 16, 13, 17, 12, 18, 11 .... 1 15 19 7 1 15 19 7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 19
Number System If A + B = 30 and AB = 94, What is the value of A² + B² ? 920 712 625 824 920 712 625 824 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (A + B)² = (30)² = 900A² + B² + 2AB = 900Therefore, A² + B² = 900 - 2 x 94 = 900 - 188 = 712
Number System When 102 is reduced from a number, the number gets reduced by 88%. What is that number ? 550 850 750 650 550 850 750 650 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 850
EXAMIANS