Number System In how many different ways can the letters of the word 'DETERMINE' be arranged ? 61480 62480 60480 63480 61480 62480 60480 63480 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP No. of arrangements = 9! / 3! Because, E comes 3 times = 60480
Number System The sum of three consecutive multiples of 3 is 72. What is the largest number? 24 36 27 21 24 36 27 21 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be 3x, 3x + 3 and 3x + 6.Then,3x + (3x + 3) + (3x + 6) = 729x = 63x = 7Largest number = 3x + 6 = 27.
Number System The difference between 71% of a number and 46% and of the same number is 212. What is 75% of that number 724 673 845 636 724 673 845 636 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ 71% of x - 46% of x = 212∴ (71 - 46)% of x = 212∴ 25/100 x x = 212∴ x = 212 x 4 = 848∴ 75% of 848 = 848 x 75/100 = 636
Number System Sum of square of first number and cube of second number together is 568. Also square of the second number is 15 less than square of 8. What is the value of three-fifth of the first number ? 8 6 7 9 8 6 7 9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the first number be x and the second number be y.∴ y² = 82 - 15 = 64 - 15 = 49∴ y = 7∴ x² + 73 = 568= x² + 343 = 568= x² + 568 - 343 = 225∴ x = √225 = 15∴ 15 x 3/5 = 9
Number System 666 / 6 / 3 = ? 333 37 111 84 333 37 111 84 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 666 * 1/6 * 1/3 = 37
Number System Twenty times a positive integer is less than its square by 96. What is the integer? Cannot be determined 24 20 30 Cannot be determined 24 20 30 ANSWER DOWNLOAD EXAMIANS APP
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