Number System If one third of 3/4 of a number is 21. Then find the number? 63 840 84 630 63 840 84 630 ANSWER DOWNLOAD EXAMIANS APP
Number System Find the number, when 15 is subtracted from 7 times the number, the result is 10 more than twice of the number 5 4 7.5 15 5 4 7.5 15 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.7x -15 = 2x + 10 => 5x = 25 => x = 5
Number System Of the three numbers, second is twice the first and is also thrice the third. If the average of the three numbers is 44, the largest number is 44 72 38 56 44 72 38 56 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 72
Number System {(742)² ÷ 36} ÷ 2 = ? 423.5 422.5 420.5 421.5 423.5 422.5 420.5 421.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = (174 x 174/36) ÷ 2 = 841/2 = 420.5
Number System The sum of three consecutive numbers is 87. The greatest among these three number is: 28 29 26 30 28 29 26 30 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x, x + 1 and x + 2 Then,x + (x + 1) + (x + 2) = 873x = 84x = 28Greatest number, (x + 2) = 30.
Number System The sum of four consecutive even numbers is 36. Find the sum of the squares of these numbers? 388 344 252 296 388 344 252 296 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.
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