Number System In how many different ways can the letters of the word ANATOMY be arranged ? 2508 2520 2504 2510 2508 2520 2504 2510 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Here total letters are 7 but A comes twice.Therefore, Numbers of arrangements = 7!/2! = 2520
Number System What should come in the place of question mark (?) in the number series given below? 159 160 157 158 159 160 157 158 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 160
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 9 7 8 6 9 7 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 One half of a two digit number exceeds its one third by 6. What is the sum of the digits of the number? 3 9 7 5 3 9 7 5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x/2 – x/3 = 6=> x =63 + 6 = 9
Number System If the difference between a number and two-fifths of that number is 45 what is the number ? 75 77 78 76 75 77 78 76 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x ∴ x - 2x/5 = 45∴ x = 75
Number System What is the difference between the local values of 3 in the number 53403? 2997 3030 3003 0 2997 3030 3003 0 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3000 – 3 = 2997
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