Number System In an examination, 68% of the total examinees passed. If the number of failures is 248, the total number of examinees is 725 640 775 750 725 640 775 750 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Failed students are 32% which is 248.∴ Total = 24800/32 = 775
Number System In how many different ways can the letters of the word TEST' be arranged ? 16 10 12 8 16 10 12 8 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The word TEST consists of 4 letters in which T comes twice ∴ Number of arrangements= 4!/2! = 4 x 3 x 2 x 1/2 x 1 = 12
Number System Which choice provides the answer : If 2 + 3 = 10, 6 + 5 = 66, 7 + 2 = 63, 9 + 7 = 144 then, 8 + 4 = ? 88 96 102 114 88 96 102 114 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 96
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 ? 21 years 25 years 15 years 18 years 21 years 25 years 15 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 On dividing 2272 as well as 875 by 3-digit number N, we get the same remainder. The sum of the digits of N is: 10 12 13 11 10 12 13 11 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Clearly, (2272 - 875) = 1397, is exactly divisible by N.Now. 1397 = 11 * 127The required 3-digit number is 127, the sum of whose digit is 10.
Number System (4 86%of 6500) ÷ 36 =? 677.5 777.5 877.5 977.5 677.5 777.5 877.5 977.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 877.5
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