Number System Subtracting 30 from a number, the remainder is one fourth of the number. Find the number? 40 30 45 22 1/2 40 30 45 22 1/2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3/4 x = 30 => x = 40
Number System The sum of four consecutive even numbers is 36. Find the sum of the squares of these numbers? 252 388 344 296 252 388 344 296 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the four numbers be x, x + 2, x + 4 and x + 6.=> x + x + 2 + x + 4 + x + 6 = 36=> 4x + 12 = 36 => x = 6The numbers are 6, 8, 10 and 12.Sum of their squares = 62 + 82 + 102 + 122 = 36 + 64 + 100 + 144 = 344.
Number System Two-third of a positive number and 25/216 of its reciprocal are equal. The number is: 144/25 5/12 25/144 12/5 144/25 5/12 25/144 12/5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,2/3 x = 25/216 * 1/xx2 = 25/216 * 3/2 = 25/144 x = 5/12
Number System If the sum of four consecutive numbers is 370, which the following is the third lowest number among them 91 92 90 89 91 92 90 89 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the four consecutive numbers be x, (x + 1), (x + 2), (x + 3) thenx + (x + 1) + (x + 2) + (x + 3) = 370= 4x + 6 = 370∴ x = 364/4 = 91∴ third lowest number among them = x + 1= 91 + 1 = 92
Number System Find the number which multiplied by 15 is increased by 196. 28 20 14 26 28 20 14 26 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,15x - x = 196x = 14
Number System Find the least number when successively divided by 2, 3 and 7 leaves remainders 1, 2 and 3 respectively? 65 67 75 61 65 67 75 61 ANSWER DOWNLOAD EXAMIANS APP
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