Number System In how many different ways can the letters of word 'BIOLOGY' be arranged ? 2410 2367 2678 2520 2410 2367 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 16.23 x 12.9 + 17.32 = ? None of these 226.687 246.687 236.687 None of these 226.687 246.687 236.687 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 16.23 x 12.9 + 17.32= 209.367 + 17.32= 226.687
Number System The sum of a number and its reciprocal is one-eighth of 34. What is the product of the number and its square root? 27 32 8 None of these 27 32 8 None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,x + 1/x = 34/8 8x2 - 34x + 8 = 0 4x2 - 17x + 4 = 0 (4x - 1)(x - 4) = 0 x = 4required number = 4 * √4 = 4 * 2 = 8.
Number System 17580 x 1.8 - 13720 x 2.1 = ? x 2.4 1180 1140 1160 1120 1180 1140 1160 1120 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2.4 x ? = 31644 - 28812 = 2832∴ ? = 2832/2.4= 1180
Number System In how many different ways can the letters of the word FORMULATE be arranged ? 372880 382880 392880 362880 372880 382880 392880 362880 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP No. of letters = 9! = 9*8*7*6*5*4*3*2*1 = 362880
Number System 56.21 +2.36+5.41 —21.4+1.5=? 34.08 44.08 54.08 64.08 34.08 44.08 54.08 64.08 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 44.08
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