Number System Supply the missing figure : 1, 4, 9, 16, 25 .... 49 23 36 42 16 23 36 42 16 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 36
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 ? 18 years 25 years 21 years 15 years 18 years 25 years 21 years 15 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
Number System (3² x 4² x 5) ÷ 36 = (?)² - 80 10 14 12 16 10 14 12 16 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 3² x 4² x 5/36 + 80= 20 + 80 = 100∴ ? = √100 = 10
Number System In how many different ways can the letters of word "SENTENCE" be arranged ? 6460 2360 3360 3260 6460 2360 3360 3260 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number of ways = 8!/3! 2! = 40320/12 = 3360
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 24 42 21 84 24 42 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2/3 x = 28 => x = 4242 * 1/2 = 21
Number System (95.6x 910.3) ÷ 92.56256 = 9? 14.44 15.54 13.34 12.24 14.44 15.54 13.34 12.24 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 13.34