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 ? 10 8 12 16 10 8 12 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 Simplify the 121 * 175 + 363 * 275 363000 None of these 328100 316600 363000 None of these 328100 316600 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 121 * 175 + 363 * 275 => 121 * 175 + 121 * 3 * 275121 * 175 + 121 * 825= 121 * (175 + 825) = 121000
Number System What is 25/2% of 482 times of 183 ? 12025.75 11025.75 12025.50 11050.75 12025.75 11025.75 12025.50 11050.75 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 25/2% of [482 x 183]= 25/2% of 88206= 25/2 x 88206 / 100= 88206 / 8= 11025.75
Number System If A = 1, B = 3, C = 5 and so on, what do the numbers 3, 9, 7 stand for BAT CAT CAR BED BAT CAT CAR BED ANSWER EXPLANATION DOWNLOAD EXAMIANS APP BED
Number System What number should come in the place of (?) in the following number series ? 1, 4, 9, 25, 49, ?, 169, 289, 361 11 121 225 321 11 121 225 321 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The series is (Prime No.)²So it is (11)² = 121
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