Number System What is the value of ? in the following equations ? 72/? = ?/50 100 60 80 40 100 60 80 40 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 72 x 50= (6 x 6 x 2) x (5 x 5 x 2)= (6 x 5 x 2)² = (60)²∴ ? = 60
Number System If HKUJ means FISH, what does UVCD mean ? STAB STAR STAK STAM STAB STAR STAK STAM ANSWER EXPLANATION DOWNLOAD EXAMIANS APP STAB
Number System 486+32×25—59=? 528 596 567 582 528 596 567 582 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 528
Number System The product of two successive numbers is 4556. Which of the following is the larger of the two numbers? 68 63 67 78 68 63 67 78 ANSWER DOWNLOAD EXAMIANS APP
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 ? 15 years 25 years 21 years 18 years 15 years 25 years 21 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
Number System The sum of two numbers is 25 and their difference is 13. Find their product. 315 114 325 104 315 114 325 104 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x and y. Then x + y = 25 and x - y = 13.x = 19; y = 6xy = 19 * 6 = 114
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