Number System (12.11)2 + (?)2 = 732.2921 20.2 17.2 14.2 24.2 20.2 17.2 14.2 24.2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 24.2
Number System The square root of 0.0081 is: 0.9 0.09 0.009 0.91 0.9 0.09 0.009 0.91 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 0.09
Number System 450% of a number is 4725. What is 82% of that number ? 861 871 841 851 861 871 841 851 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 450/100 = 4725= x = 4725 x 100/450 = 1050∴ 82% of 1050 = 1050 x 82/100= 861
Number System (2560 x 1.4) +(7400 x 0.6) =? 9160 8024 7234 6543 9160 8024 7234 6543 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8024
Number System Sum of the digits number is 8 and their product is 12. Find the difference between the digits? None 4 2 6 None 4 2 6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 8xy = 12(x – y)2 = (x + y)2 – 4xy (x – y)2 = 64 – 48 => (x – y) = 4
Number System The sum of five consecutive numbers is 190. What is the sum of the largest and the smallest number ? 76 73 75 74 76 73 75 74 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + x + 1 + x + 2 + x + 3 + x + 4= 190= 5x + 10 = 190= 5x = 190 - 10 = 180= x = 180/5 = 36The largest number = 36 + 4 = 40∴ Required sum = 36 + 40 = 76
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