Number System In how many different ways can the letters of word 'BIOLOGY' be arranged ? 2367 2410 2678 2520 2367 2410 2678 2520 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In BIOLOGY total 7 letters are there but O comes twice.∴ Number of arrangements = 7!/2! = 2520
Number System What value should come in place of ? in the given number series ? 15, 51, 162, 498, 1509, ? 4545 5656 3434 7878 4545 5656 3434 7878 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 15, (15 + 2) x 3 = 51,(51 + 3) x 3 = 162, (162 + 4) x 3 = 498, (498 + 5) x 3 = 1509(1509 + 6) x 3 = 4545
Number System Given √2 = 1.414, the value of √8 + 2√32 - 3√128 + 4√50 is 8.684 8.784 8.584 8.484 8.684 8.784 8.584 8.484 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8.484
Number System Pick the wrong number from the given number series. 3,4,10,33,135,685,4116 135 685 33 10 135 685 33 10 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The correct number is 136.3 x 1 + 1 = 44 x 2 + 2 = 1010 x 3 + 3 = 3333 x 4 + 4 = 136136 x 5 + 5 = 685685 x 6 + 6 = 4116
Number System If the numerator of a fraction is increased by 200% and the denominator by 300%, the fraction thus obtained is 1/36. What is the original fractions ? 5/9 6/9 4/9 3/9 5/9 6/9 4/9 3/9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the fractions be x/yx + 200% of x/y + 300% of y = 1/3= x + 2x/y + 3y = 1/3= 3x/4y = 1/3Hence x/y = 4/9
Number System What is the difference between the largest and the smallest number written with 7, 7, 0, 7? 693 6093 6993 6893 693 6093 6993 6893 ANSWER DOWNLOAD EXAMIANS APP
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