Number System A number consists of two digits. If 3/5 of 1/5 of the number is 9. Find the sum of its two digits? 12 60 8 7 12 60 8 7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x * 3/5 * 1/5 = 9x = 75 => 7 + 5 = 12
Number System Find the number, when 15 is subtracted from 7 times the number, the result is 10 more than twice of the number 5 4 7.5 15 5 4 7.5 15 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.7x -15 = 2x + 10 => 5x = 25 => x = 5
Number System What should come in the place of ' ? ' in the following number series ? 2, 5, 9, 19, 37, ? 77 76 78 75 77 76 78 75 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2 x 2 + 1 = 5;5 x 2 - 1 = 99 x 2 + 1 = 19: 19 x 2 - 1 = 3737 x 2 + 1 = 75
Number System In how many different ways can the letters of the word TEST' be arranged ? 12 10 8 16 12 10 8 16 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The word TEST consists of 4 letters in which T comes twice ∴ Number of arrangements= 4!/2! = 4 x 3 x 2 x 1/2 x 1 = 12
Number System 35%of ?=242 693 542 487 394 693 542 487 394 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 693
Number System Given √2 = 1.414, the value of √8 + 2√32 - 3√128 + 4√50 is 8.484 8.684 8.784 8.584 8.484 8.684 8.784 8.584 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8.484
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