Number System In how many different ways can the letters of the word 'DETERMINE' be arranged ? 61480 63480 62480 60480 61480 63480 62480 60480 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP No. of arrangements = 9! / 3! Because, E comes 3 times = 60480
Number System The Twenty-First Century will start on January 1 in the year 2001 2101 2000 2100 2001 2101 2000 2100 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2001
Number System Find the nearest to 25268 which is exactly divisible by 467? 25208 25308 25228 25218 25208 25308 25228 25218 ANSWER DOWNLOAD EXAMIANS APP
Number System A number when divided by 221 gives a remainder 43, what remainder will be obtained by dividing the same number 17? 10 11 9 5 10 11 9 5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 221 + 43 = 264/17 = 9 (Remainder)
Number System The difference between 8% of a number and 3% of the same number is 39. What is 2.8% of that number ? 21.84 24.84 27.84 25.84 21.84 24.84 27.84 25.84 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x(8 - 3)% = 39x = 3900/5 = 780∴ 2.8% of 780= 780 x 2.8/100 = 21.84
Number System If x + y = 61 and xy = 888, What is the value of x²+ y² ? 1965 1945 1975 1955 1965 1945 1975 1955 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Because (x + y)² = x² + y² + 2xy∴ x² + y² = (x + y)² - 2xy∴ x² + y² = (61)² - 2 x 888= 3721 - 1776 = 1945
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