Number System If the average of two numbers is 88.5 and one number is 5.5 less than the average. Find out the next number. 91 94 86 97 91 94 86 97 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 94
Number System Supply the missing figure : 3, 11, 8, 16, 13 .... 18 28 18 21 12 28 18 21 12 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 21
Number System The difference between the two digit number and the number obtained by interchanging its digits is 54. The difference between the digits is? 6 4 1 Nothing can be said. 6 4 1 Nothing can be said. ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (10x + y) – (10y + x) = 54x – y = 6
Number System What is the sum of 1 + 2 + 3+ ... + 27 ? 382 378 396 343 382 378 396 343 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Sum = 27 x (27 + 1)/2= 27 x 28/2= 27 x 14= 378
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. 50 48 47 49 50 48 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 63.602 + 153.756 + 94.754 - 84.321 - 122.204 = ? 142.587 140.587 143.587 141.587 142.587 140.587 143.587 141.587 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 312.112 - 170.525 = 141.587
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