Number System A number when, 28 subtracted from it reduces to its one third. What is the value of 50% of that number? 42 21 84 24 42 21 84 24 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2/3 x = 28 => x = 4242 * 1/2 = 21
Number System What is the difference between the largest number and the least number written with the figures 3, 4, 7, 0, 3? 43983 43883 43893 70983 43983 43883 43893 70983 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 74330 Largest30347 Smallest-------------43983
Number System 2536+4851—?=3450+313 4567 3624 5243 6784 4567 3624 5243 6784 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3624
Number System The average age of seven boys sitting in a row facing North is 26 years. If the average age of first three boys is 19 years and the average age of last three boys is 32 years, what is the age of the b 28 years 30 years 29 years 31 years 28 years 30 years 29 years 31 years ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Age of the fourth boy = (26 x 7 - 3 x 19 - 3 x 32) years = (182 - 57 - 96) years = 29 years
Number System The sum of two numbers is 165 and the difference between them is 9. What is the average of these two numbers ? 83.5 84.5 82.5 85.5 83.5 84.5 82.5 85.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 165x - y = 92x = 174 ∴ x = 87 and y = 78∴ x + y/2 = 165/2 = 82.5
Number System 3√68921 = ? 21 41 31 51 21 41 31 51 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 3√68921= 3√41 x 41 x 41= 41
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