Number System 1256+4813+765=? 6834 6836 6839 6831 6834 6836 6839 6831 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1256+4813+765= 6069+765=6834
Number System If (72)² is subtracted from the square of a number, the answer thus obtained is 4617. What is the number ? 99 103 92 95 99 103 92 95 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x² - (72)² = 467Therefore, x² = 4617 + 5184Therefore, x² = 9801 Therefore, x = 99
Number System If the sum of one-half of a number exceeds one-third of that number by 7 1/3, the number is: 30 15 20 18 30 15 20 18 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,(1/2 x + 1/5 x) - 1/3 x = 22/311/30 x = 22/3x = 20
Number System (4 86%of 6500) ÷ 36 =? 977.5 677.5 777.5 877.5 977.5 677.5 777.5 877.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 877.5
Number System The difference between two integers is 5. Their product is 500. Find the numbers. 15, 20 30, 25 21, 26 20, 25 15, 20 30, 25 21, 26 20, 25 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 In how many different ways can the letters of the word TEST' be arranged ? 10 8 12 16 10 8 12 16 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The word TEST consists of 4 letters in which T comes twice ∴ Number of arrangements= 4!/2! = 4 x 3 x 2 x 1/2 x 1 = 12
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