Number System Which number should replace question mark (?) in the following equation ? ?/342 = 38/? 114 116 118 112 114 116 118 112 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 342 x 38Therefore, ? = √342 x 38 = √38 x 9 x 38 = 38 x 3 = 114
Number System If three eighth of a number is 141. What will be the approximately value of 32.08% of this number? 60 120 160 90 60 120 160 90 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x * 3/8 = 141 => x= 376376 * 32.08/100 = 120
Number System What is the least number, which is perfect square but contains 2700 as its factor? 2700 5400 10800 1800 2700 5400 10800 1800 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 900 * 3 * 3 = 8100
Number System In an examination, 68% of the total examinees passed. If the number of failures is 248, the total number of examinees is 775 750 725 640 775 750 725 640 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Failed students are 32% which is 248.∴ Total = 24800/32 = 775
Number System If the sum of the two numbers is 22 and the sum of their squares is 404, then the product of the numbers is: 88 80 44 40 88 80 44 40 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x and y. Then, (x + y) = 22 and x2 + y2 = 404 Now, 2xy = (x + y)2 - (x2 + y2) 2xy= 222 - 404 = 484 - 404 = 80xy = 40
Number System In how many different ways can the letters of the word CORPORATION be arranged ? None of these 1326400 3326400 2326400 None of these 1326400 3326400 2326400 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP CORPORATION = 11 letters 'O' comes thrice,'R' twice.∴ total no. of ways = 111/3121 = 3326400
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