Number System What should come in place of the question mark (?) in the following number series ? 888 888 444 148 ? 7.4 33 37 29 35 33 37 29 35 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 888 ÷ 1 = 888888 ÷ 2 = 444444 ÷ 3 = 148148 ÷ 4 = 3737 ÷ 5 = 7.4
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. 47 50 49 48 47 50 49 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 Sum of two numbers is 15. Two times of the first exceeds by 5 from the three times of the other. Then the numbers will be? 9, 6 10, 5 6, 9 7, 8 9, 6 10, 5 6, 9 7, 8 ANSWER DOWNLOAD EXAMIANS APP
Number System What number should replace both the question marks (?) in the following question ? 82 83 84 85 82 83 84 85 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 84
Number System If (72)² is subtracted from the square of a number, the answer thus obtained is 4617. What is the number ? 92 95 99 103 92 95 99 103 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x² - (72)² = 467Therefore, x² = 4617 + 5184Therefore, x² = 9801 Therefore, x = 99
Number System What number should come in the place of (?) in the following number series ? 1, 4, 9, 25, 49, ?, 169, 289, 361 11 225 121 321 11 225 121 321 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The series is (Prime No.)²So it is (11)² = 121
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