Number System What is the average of the following set of numbers ? 173, 192, 198, 204, 211, 223, 227 204 210 234 222 204 210 234 222 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Avg = 173 + 192 + 198 + 204 + 211 + 223 + 227/7 = 1428/7 = 204
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. 49 50 47 48 49 50 47 48 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 What is the difference between the largest number and the least number written with the digits 7, 3, 1, 4? 5084 6048 6084 6184 5084 6048 6084 6184 ANSWER DOWNLOAD EXAMIANS APP
Number System If R2 = S3 = K, where R, S and K are integers. Find the smallest positive integral value of K. (Greater than 1) 88 54 75 64 88 54 75 64 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 64
Number System (√6 + 1)² = ? + 2√6 5 8 7 6 5 8 7 6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = (√6 + 1)² - 2√6= (√6)² + 2 x √6 + 1 + 1² - 2√6= 6 + 2√6 + 1 - 2√6 = 6 + 1 = 7
Number System What is 846 times 323 ? 273258 293798 264258 283298 273258 293798 264258 283298 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 846 x 323 = 273258
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