Number System If 5/7 of a number is 145, what is 180% of that number ? 365.4 345.4 375.4 355.4 365.4 345.4 375.4 355.4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 5/7 = 145∴ x = 145 x 7/5 = 203Now, 203 x 180/100 = 365.4
Number System If 2^(2x-1) = 8^(3-x), then the value of x is: 2 9 6 5 2 9 6 5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2
Number System (√6 + 1)² = ? + 2√6 6 8 7 5 6 8 7 5 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 A gardener wants to plant trees in his garden in such a way that the number of trees in each row should be the same. If there are 4 rows or 5 rows or 6 rows, then no tree will be left. Find the least 60 30 120 240 60 30 120 240 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The least number of trees that are required = LCM(4, 5, 6) = 60.
Number System √207.36 = ? 14.4 16.7 15.7 12.3 14.4 16.7 15.7 12.3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP √207.36 = √20736/√100 = 144/10 = 14.4
Number System The sum of the digits of a two digit number is 12. If the new number formed by reversing the digits is greater than the original number by 54, then what will be the original number? 59 49 69 39 59 49 69 39 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 39
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