Number System (√6 + 1)² = ? + 2√6 7 8 6 5 7 8 6 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 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 48 47 49 50 48 47 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 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? 49 69 59 39 49 69 59 39 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 39
Number System On dividing number by 5, we get 3 as remainder. What will be the remainder when the square of this number is divided by 5? 1 0 2 4 1 0 2 4 ANSWER DOWNLOAD EXAMIANS APP
Number System How many numbers up to 200 are divisible by 2 and 3 both? 35 33 29 27 35 33 29 27 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 200/6 = 33 2/6 => 33 Numbers
Number System The square root of 0.0081 is: 0.91 0.9 0.09 0.009 0.91 0.9 0.09 0.009 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 0.09
EXAMIANS