Number System 6.4 x 8.5 x 25/3.2 x 12.5 = ? 2.3 3.4 5.6 4.5 2.3 3.4 5.6 4.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 6.4 x 8.5 x 2.5/3.2 x 12.5 = 3.4
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 ? 245 220 225 232 245 220 225 232 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Diff = (35 - 18)% of x = 93.517x/100 = 93.5Therefore, x = 550Therefore, 40% of 550 = 220
Number System If (47)² is added to the square of a number the answer thus obtained is 2290. What is the number ? 8 9 10 7 8 9 10 7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be x Therefore, x² + (47)² = 2290Therefore, x² = 2290 - 2209 = 81Therefore, x = 9
Number System In how many different ways can the letters of the word ANATOMY be arranged ? 2520 2508 2510 2504 2520 2508 2510 2504 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Here total letters are 7 but A comes twice.Therefore, Numbers of arrangements = 7!/2! = 2520
Number System (2560 x 1.4) +(7400 x 0.6) =? 8024 9160 7234 6543 8024 9160 7234 6543 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8024
Number System The sum of the digits of a two-digit number is 12, and the difference between the number and the number obtained by interchanging the two digits of the number is 18. Find the number. 12.5 75 50 25 12.5 75 50 25 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be 10x + y.∴ x + y = 12 ...........(i)10x + y - (10x + x) = 18or 10x + y - 10y - x = 18or 9x - 9y = 18∴ x - y = 2From (i) and (ii), x = 7, y = 5∴ Number = 75
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