Number System 56.21 +2.36+5.41 —21.4+1.5=? 64.08 44.08 54.08 34.08 64.08 44.08 54.08 34.08 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 44.08
Number System The sum of two numbers is 25 and their difference is 13. Find their product. 325 104 114 315 325 104 114 315 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x and y. Then x + y = 25 and x - y = 13.x = 19; y = 6xy = 19 * 6 = 114
Number System On multiplying a number by 7, the product is a number each of whose digits is 3. The smallest such number is: 47719 47649 47619 48619 47719 47649 47619 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 by interchanging the digits is 36. What is the difference of the two digits of the number ? 1 4 3 2 1 4 3 2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (10x + y) - (10y + x) = 36,9(x - y) = 36/9 = 4
Number System What is the sum of 1 + 2 + 3+ ... + 27 ? 396 343 378 382 396 343 378 382 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Sum = 27 x (27 + 1)/2= 27 x 28/2= 27 x 14= 378
Number System Sum of two consecutive even terms lacks by 98 from their product. Find the sum of these number 18 None 32 24 18 None 32 24 ANSWER DOWNLOAD EXAMIANS APP
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