Number System A number when, 28 subtracted from it reduces to its one third. What is the value of 50% of that number? 21 84 42 24 21 84 42 24 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2/3 x = 28 => x = 4242 * 1/2 = 21
Number System If the difference between the squares of two consecutive numbers is 47, what is the smaller number ? 24 23 25 26 24 23 25 26 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be (x + 1) and x.Therefore, (x + 1)² - x² = 47x² + 2x + 1 - x² = 472x + 1 = 47Therefore, x = 46/2 = 23
Number System How many figures are required to number the pages the pages of a book containing 365 pages? 967 977 987 897 967 977 987 897 ANSWER DOWNLOAD EXAMIANS APP
Number System The simplest form of 1.5 : 2.5 is : 3 : 5 13 : 11 5 : 7 17 : 19 3 : 5 13 : 11 5 : 7 17 : 19 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3 : 5
Number System 65 x 288 ÷ 52 = 1.8 x ? 200 180 210 190 200 180 210 190 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 65x288/52x1.8 = 200
Number System The difference between 71% of a number and 46% and of the same number is 212. What is 75% of that number 673 636 724 845 673 636 724 845 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ 71% of x - 46% of x = 212∴ (71 - 46)% of x = 212∴ 25/100 x x = 212∴ x = 212 x 4 = 848∴ 75% of 848 = 848 x 75/100 = 636
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