Number System Find the number, when 15 is subtracted from 7 times the number, the result is 10 more than twice of the number 7.5 4 15 5 7.5 4 15 5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.7x -15 = 2x + 10 => 5x = 25 => x = 5
Number System What is the value of ? in the following equations ? 72/? = ?/50 60 40 80 100 60 40 80 100 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 72 x 50= (6 x 6 x 2) x (5 x 5 x 2)= (6 x 5 x 2)² = (60)²∴ ? = 60
Number System {(742)² ÷ 36} ÷ 2 = ? 423.5 421.5 422.5 420.5 423.5 421.5 422.5 420.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = (174 x 174/36) ÷ 2 = 841/2 = 420.5
Number System Find the least number when successively divided by 2, 3 and 7 leaves remainders 1, 2 and 3 respectively? 75 65 61 67 75 65 61 67 ANSWER DOWNLOAD EXAMIANS APP
Number System What is the difference between the local value of 7 and 5 in the number 2574? 430 570 413 403 430 570 413 403 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 500 – 70 = 430
Number System Difference between two numbers is 5, six times of the smaller lacks by 6 from the four times of the greater. Find the numbers? 10, 5 12, 9 12, 7 11, 6 10, 5 12, 9 12, 7 11, 6 ANSWER DOWNLOAD EXAMIANS APP
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