Number System The difference between 72% of a number and 49% of the same number is 575. What is 9% of that number ? 225 245 295 275 225 245 295 275 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be x.Therefore, 72% of x - 49% of x = 575Therefore, (72 - 49)% of x = 575Therefore, 9% of x = 575/23 x 9 = 225
Number System Supply the missing figure : 2, 6, 12, 20, 30 ... 56 42 41 40 39 42 41 40 39 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 42
Number System In how many different ways can the letters of the word 'FRUGAL'be arranged ? 556 720 660 515 556 720 660 515 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In FRUGAL there ae six difference letters Therefore, 6 ! = 6 x 5 x 4 x 3 x 2 x 1 = 720
Number System {3√4913}² = ? 333 289 225 121 333 289 225 121 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = (3√4913)² = (17)² = 289
Number System In how many different ways can the letters of word 'BIOLOGY' be arranged ? 2367 2520 2678 2410 2367 2520 2678 2410 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In BIOLOGY total 7 letters are there but O comes twice.∴ Number of arrangements = 7!/2! = 2520
Number System Find the average of the following set of scores 450, 1050, 12, 390, 143, 286, 550, 999 490 485 495 480 490 485 495 480 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Required average score = (450 + 1050 + 12 + 390 + 143 + 286 + 550 + 999) / 8 = 3880 / 8 = 485
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