Number System Find the smallest number which should be multiplied with 520 to make it a perfect square. None of these 55 30 120 None of these 55 30 120 ANSWER DOWNLOAD EXAMIANS APP
Number System 384×12×2=? 6123 9216 8465 7487 6123 9216 8465 7487 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 9216
Number System In how many different ways can the letters of the word ANATOMY be arranged ? 2510 2504 2508 2520 2510 2504 2508 2520 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Here total letters are 7 but A comes twice.Therefore, Numbers of arrangements = 7!/2! = 2520
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 21 years 25 years 18 years 15 years 21 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
Number System The difference between 35% of a number and 18% of the same number is 93.5 then what is the 40% of that number ? 225 232 220 245 225 232 220 245 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Diff = (35 - 18)% of x = 93.517x/100 = 93.5Therefore, x = 550Therefore, 40% of 550 = 220
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