Number System The difference between 71% of a number and 46% and of the same number is 212. What is 75% of that number 845 673 724 636 845 673 724 636 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ 71% of x - 46% of x = 212∴ (71 - 46)% of x = 212∴ 25/100 x x = 212∴ x = 212 x 4 = 848∴ 75% of 848 = 848 x 75/100 = 636
Number System Which one of the following is the sum of the numbers 1, 3, 5, 7, 9…. up to nth number? N(N + 1) N2 N(N + 1)/2 N2 + 1 N(N + 1) N2 N(N + 1)/2 N2 + 1 ANSWER DOWNLOAD EXAMIANS APP
Number System The sum of three consecutive even numbers is 252. What is the sum of the smallest and the largest numbers? 169 168 170 171 169 168 170 171 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 168
Number System If one-seventh of a number is 55 then 40% of that number = ? 171 154 147 163 171 154 147 163 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be x , Therefore, x/7 = 55Therefore, x = 55 x 7 = 385Therefore, 49% of 385 = 154
Number System What is the least number, which is perfect square but contains 2700 as its factor? 1800 5400 10800 2700 1800 5400 10800 2700 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 900 * 3 * 3 = 8100
Number System A number when multiplied by five times of itself give the value equal to 1445. What is the number ? 16 17 15 18 16 17 15 18 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x x 5x = 1445= 5x² = 1445= x² = 289∴ x = 17
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