Number System What is the sum of 1 + 2 + 3+ ... + 27 ? 382 343 378 396 382 343 378 396 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Sum = 27 x (27 + 1)/2= 27 x 28/2= 27 x 14= 378
Number System The product of two consecutive odd numbers is 4623. What is the product of the next two consecutive odd numbers ? 8795 6782 5183 7745 8795 6782 5183 7745 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP √4623 = 6767 x 69 = 4623∴ Required product = 71 x 73 = 5183
Number System Which number should replace question mark (?) in the following equation ? ?/342 = 38/? 118 116 112 114 118 116 112 114 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 342 x 38Therefore, ? = √342 x 38 = √38 x 9 x 38 = 38 x 3 = 114
Number System Supply the missing figure : 2, 6, 12, 20, 30 ... 56 39 41 40 42 39 41 40 42 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 42
Number System How many numbers up to 200 are divisible by 2 and 3 both? 33 27 35 29 33 27 35 29 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 200/6 = 33 2/6 => 33 Numbers
Number System What is 25/2% of 482 times of 183 ? 11050.75 11025.75 12025.50 12025.75 11050.75 11025.75 12025.50 12025.75 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 25/2% of [482 x 183]= 25/2% of 88206= 25/2 x 88206 / 100= 88206 / 8= 11025.75
EXAMIANS