Number System (1024—263—233)÷(986—764— 156) =? 10 8 None of these 6 10 8 None of these 6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8
Number System If (74)² is added to the square of a number the answer so obtained is 7780. What is the number ? 47 49 48 50 47 49 48 50 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.or, x² + (74)² = 7780or, x² = 7780 - 5476 = 2304∴ x = 48
Number System Two-third of a positive number and 25/216 of its reciprocal are equal. The number is: 12/5 5/12 144/25 25/144 12/5 5/12 144/25 25/144 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,2/3 x = 25/216 * 1/xx2 = 25/216 * 3/2 = 25/144 x = 5/12
Number System On dividing number by 357, we get 39 as remainder. On dividing the same number by 17, what will be the remainder? 5 11 0 3 5 11 0 3 ANSWER DOWNLOAD EXAMIANS APP
Number System If A + B = 30 and AB = 94, What is the value of A² + B² ? 625 712 920 824 625 712 920 824 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (A + B)² = (30)² = 900A² + B² + 2AB = 900Therefore, A² + B² = 900 - 2 x 94 = 900 - 188 = 712
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