Number System 0.333 .... × 0.444 .... is equal to 0.777 .... 0.148148148 .... 1.333 .... 0.121212 .... 0.777 .... 0.148148148 .... 1.333 .... 0.121212 .... ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 0.148148148 ....
Number System If (17)3 is subtracted from the square of a number, the answer so obtained is 2143. What is the number ? 83 82 84 81 83 82 84 81 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x² - (17*17*17) = 2143or x² = 2143 + 4913 = 7056∴ x = 84
Number System The difference between a number and its three-fifth is 50. What is the number? 75 125 None of these 100 75 125 None of these 100 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x - 3/5 x = 50 => 2/5 x = 50x = (50 * 5)/2 = 125.
Number System If the L.C.M of two numbers is 750 and their product is 18750, find the H.C.F of the numbers. 125 50 30 25 125 50 30 25 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP H.C.F = (Product of the numbers) / (Their L.C.M) = 18750/750 = 25.
Number System 5525 ÷ 17 = √? 93025 99225 112225 105625 93025 99225 112225 105625 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP √? = 5525/17 = 325∴ ? = (325)² = 105625
Number System On multiplying a number by 7, the product is a number each of whose digits is 3. The smallest such number is: 48619 47649 47719 47619 48619 47649 47719 47619 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP By hit and trail, we find that47619 * 7 = 333333.7) 333333 (47619 333333---------------- 0
EXAMIANS