Number System 732.96 + 405.38 - 604.08 - 105.44 + 222.86 = ? 631.68 621.68 641.68 651.68 631.68 621.68 641.68 651.68 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 1361.20 - 709.52 = 651.68
Number System 64% of 2650+40% 0f 320=? 1824 1247 2096 1578 1824 1247 2096 1578 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1824
Number System On multiplying a number by 7, the product is a number each of whose digits is 3. The smallest such number is: 47619 47649 47719 48619 47619 47649 47719 48619 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP By hit and trail, we find that47619 * 7 = 333333.7) 333333 (47619 333333---------------- 0
Number System The difference between a two-digit number and the number obtained after interchanging its two digits is 36. The sum of the two digits of the number is 12. Find the lowest such possible number. 48 50 47 49 48 50 47 49 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the digits be x and yTherefore, x + y = 12 .............(1)(10y + x) - (10x + y) Therefore, y - x = 4............. (2)Solving (1) and (2), y = 8 Therefore, x = 4There are two possible numbers 48 and 84. So the lowest no. is 48.
Number System Find the least number with which 16200 should be multiplied, to make it a perfect cube. 45 36 360 48 45 36 360 48 ANSWER DOWNLOAD EXAMIANS APP
Number System The product of two consecutive position odd numbers is 6723. What is the smaller number? 79 71 83 74 79 71 83 74 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP n x (n + 2) = 6723= n² + 2n - 6723 = 0= n² + 83n - 81n - 6723 = 0= n(n + 83) - 81 (n + 83) = 0Therefore, (n - 81) (n + 83) = 0Therefore, n = 81, n + 2 = 83
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