Number System 106 * 106 - 94 * 94 = ? 1904 1906 2000 2400 1904 1906 2000 2400 ANSWER DOWNLOAD EXAMIANS APP
Number System Two-third of a positive number and 25/216 of its reciprocal are equal. The number is: 144/25 5/12 25/144 12/5 144/25 5/12 25/144 12/5 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 0.333 .... × 0.444 .... is equal to 0.148148148 .... 0.777 .... 1.333 .... 0.121212 .... 0.148148148 .... 0.777 .... 1.333 .... 0.121212 .... ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 0.148148148 ....
Number System What is the value of ? in the following equations ? 72/? = ?/50 80 40 60 100 80 40 60 100 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 72 x 50= (6 x 6 x 2) x (5 x 5 x 2)= (6 x 5 x 2)² = (60)²∴ ? = 60
Number System If the sum and difference of two numbers are 20 and 8 respectively, then the difference of their square is: 28 160 180 12 28 160 180 12 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x and y. Then, x + y = 20 and x - y = 8x2 - y2 = (x + y)(x - y) = 20 * 8 = 160.
Number System In how many different ways can the letters of the word ANATOMY be arranged ? 2510 2508 2520 2504 2510 2508 2520 2504 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Here total letters are 7 but A comes twice.Therefore, Numbers of arrangements = 7!/2! = 2520
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