Number System The sum of the squares of three numbers is 138, while the sum of their products taken two at a time is 131. Their sum is: 40 30 None of these 20 40 30 None of these 20 ANSWER DOWNLOAD EXAMIANS APP
Number System If the average of two numbers is 88.5 and one number is 5.5 less than the average. Find out the next number. 86 97 94 91 86 97 94 91 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 94
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: 40 80 88 44 40 80 88 44 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 The difference between 35% of a number and 18% of the same number is 93.5 then what is the 40% of that number ? 220 245 225 232 220 245 225 232 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Diff = (35 - 18)% of x = 93.517x/100 = 93.5Therefore, x = 550Therefore, 40% of 550 = 220
Number System 1256+4813+765=? 6834 6839 6836 6831 6834 6839 6836 6831 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1256+4813+765= 6069+765=6834
Number System Find the least number when successively divided by 2, 3 and 7 leaves remainders 1, 2 and 3 respectively? 65 67 61 75 65 67 61 75 ANSWER DOWNLOAD EXAMIANS APP
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