Number System 35 + 15 * 1.5 = ? 5.25 57.5 75 51.5 5.25 57.5 75 51.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given Exp. = 35 + 15 * 3/2 = 35 + 45/2 = 35 + 22.5 = 57.5
Number System The average of five consecutive even numbers A, B, C, D and E is 54. What is the product of'B' and 'E' ? 2871 4098 3016 1456 2871 4098 3016 1456 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Because, The even numbers are consecutive and their average is 54.∴ The number C will be 54.∴ A = 50, B = 52, D = 56, E = 58B x E = 52 x 58 = 3016
Number System The Twenty-First Century will start on January 1 in the year 2000 2001 2101 2100 2000 2001 2101 2100 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2001
Number System √343 = ? 19 21 20 18 19 21 20 18 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √343 = 18
Number System 17580 x 1.8 - 13720 x 2.1 = ? x 2.4 1160 1140 1120 1180 1160 1140 1120 1180 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2.4 x ? = 31644 - 28812 = 2832∴ ? = 2832/2.4= 1180
Number System The sum of the present age of a father and a son is 60 years. Five years before, the age of the father was four times that of son. What is the present age of the son ? 21 years 15 years 25 years 18 years 21 years 15 years 25 years 18 years ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the father's age be x and son's age yTherefore, x + y = 60 ....................(i)Five years back, (x - 5) = 4 (y - 5)x - 4y = - 15 ......................(2)Solving (1) and (2), x = 45 and y = 15
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