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 Ratio between two numbers is 3: 4 and their sum is 420. Find the smaller number? 160 140 180 240 160 140 180 240 ANSWER DOWNLOAD EXAMIANS APP
Number System Of an amount, 20% of 25% of 30% is Rs 75. Then what is the original amount ? Rs. 2000 Rs. 5000 Rs. 4000 Rs. 3000 Rs. 2000 Rs. 5000 Rs. 4000 Rs. 3000 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the amount be x.∴ X x 20/100 x 25/100 x 30/100 = 75∴ X = 75 x 5 x 4 x 10/3 = 5000
Number System When (21)² is subtracted from the square of a number the answer obtained is 1584. What is the number ? 45 65 55 35 45 65 55 35 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.According to the question,x² - (21)² = 1584= x² - 441 = 1584 = x² = 1584 + 441 = 2025∴ x = √2025 = 45
Number System If the three fourth of a number is subtracted from the number; the value so, obtained is 163. What is that number ? 652 678 692 689 652 678 692 689 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number x (1 - 3/4) = 163∴ Number = 163 x 4 = 652
Number System 3251 + 587 + 369 - ? = 3007 1200 1375 1250 1300 1200 1375 1250 1300 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let 4207 - x = 3007 Then, x = 4207 - 3007 = 1200
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