Number System The Twenty-First Century will start on January 1 in the year 2100 2101 2001 2000 2100 2101 2001 2000 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2001
Number System A number when divided by 221 gives a remainder 43, what remainder will be obtained by dividing the same number 17? 5 11 9 10 5 11 9 10 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 221 + 43 = 264/17 = 9 (Remainder)
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 18 years 21 years 25 years 15 years 18 years 21 years 25 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 five consecutive numbers is 190. What is the sum of the largest and the smallest number ? 74 73 75 76 74 73 75 76 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + x + 1 + x + 2 + x + 3 + x + 4= 190= 5x + 10 = 190= 5x = 190 - 10 = 180= x = 180/5 = 36The largest number = 36 + 4 = 40∴ Required sum = 36 + 40 = 76
Number System Three numbers which are co-prime to one another are such that the product of the first two 551 and that of the last two is 1073. The sum of the three numbers is 85 93 110 74 85 93 110 74 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 85
Number System 7589 - ? = 3434 4155 11023 4242 1123 4155 11023 4242 1123 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let 7589 - x = 3434Then x = 7589 - 3434 = 4155
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