Number System What is the difference between the largest number and the least number written with the digits 7, 3, 1, 4? 6184 5084 6048 6084 6184 5084 6048 6084 ANSWER DOWNLOAD EXAMIANS APP
Number System (3² x 4² x 5) ÷ 36 = (?)² - 80 14 12 16 10 14 12 16 10 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 3² x 4² x 5/36 + 80= 20 + 80 = 100∴ ? = √100 = 10
Number System If (47)² is added to the square of a number the answer thus obtained is 2290. What is the number ? 7 8 10 9 7 8 10 9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be x Therefore, x² + (47)² = 2290Therefore, x² = 2290 - 2209 = 81Therefore, x = 9
Number System Ratio between two numbers is 3: 4 and their sum is 420. Find the smaller number? 140 240 180 160 140 240 180 160 ANSWER DOWNLOAD EXAMIANS APP
Number System 106 * 106 - 94 * 94 = ? 1906 2000 2400 1904 1906 2000 2400 1904 ANSWER DOWNLOAD EXAMIANS APP
Number System If the sum of one-half of a number exceeds one-third of that number by 7 1/3, the number is: 20 15 18 30 20 15 18 30 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
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