Number System (1024—263—233)÷(986—764— 156) =? 8 10 None of these 6 8 10 None of these 6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8
Number System What is the sum of the local values of the digits 2, 3, 4, 5 in the number 2345? 5243 2345 2105 2435 5243 2345 2105 2435 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2000 + 300 + 40 + 5 = 2345
Number System Find the nearest to 25268 which is exactly divisible by 467? 25208 25218 25308 25228 25208 25218 25308 25228 ANSWER DOWNLOAD EXAMIANS APP
Number System If A + B = 30 and AB = 94, What is the value of A² + B² ? 824 920 712 625 824 920 712 625 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 The difference between two integers is 5. Their product is 500. Find the numbers. 20, 25 30, 25 21, 26 15, 20 20, 25 30, 25 21, 26 15, 20 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the integers be x and (x + 5). Then, x(x + 5) = 500 x2 + 5x - 500 = 0 (x + 25)(x - 20) = 0 x = 20So, the numbers are 20 and 25.
Number System A number is doubled and 9 is added. If the resultant is trebled, it becomes 75. What is that number? 8 6 3.5 None of these 8 6 3.5 None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,3(2x + 9) = 752x = 16 => x = 8
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