Number System What least number should be added to 8602 to make it a perfect square ? 51 41 36 47 51 41 36 47 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP So, (93)² = 8649So, the required number to be added to make a perfect square = 8649 - 8602 = 47
Number System The sum of two numbers is 165 and the difference between them is 9. What is the average of these two numbers ? 85.5 82.5 84.5 83.5 85.5 82.5 84.5 83.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 165x - y = 92x = 174 ∴ x = 87 and y = 78∴ x + y/2 = 165/2 = 82.5
Number System 84 * 29 + 365 = ? 2436 - 2801 2801 - 2071 2436 - 2801 2801 - 2071 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP - 84 * (30 - 1) + 365= - (84 * 30) + 84 + 365= - 2520 + 449 = - 2071
Number System A number when divided by 221 gives a remainder 43, what remainder will be obtained by dividing the same number 17? 5 9 11 10 5 9 11 10 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 221 + 43 = 264/17 = 9 (Remainder)
Number System The sum of three consecutive even numbers is 252. What is the sum of the smallest and the largest numbers? 171 168 169 170 171 168 169 170 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 168
Number System The population of a town increases by 15% in the first year and decreases by 25% in the second year. If its current population is 168480 then what will be its population after two years ? 145914 145714 145214 145314 145914 145714 145214 145314 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Population of the town= 168480 x 115/100 x 75/100= 145314
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