Number System If the fractions8/5,7/2,9/5,5/4,4/5 are arranged in descending order of their values, which one will be fourth? 11/13 5/4 1/3 7/9 11/13 5/4 1/3 7/9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 5/4
Number System 3√68921 = ? 21 31 51 41 21 31 51 41 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 3√68921= 3√41 x 41 x 41= 41
Number System 74698 + 365 + 85213 + 95 = ? 160371 160351 160361 160341 160371 160351 160361 160341 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 74698 + 365 + 85213 + 95 = 160371
Number System In how many different ways can the letters of word 'BIOLOGY' be arranged ? 2678 2520 2410 2367 2678 2520 2410 2367 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In BIOLOGY total 7 letters are there but O comes twice.∴ Number of arrangements = 7!/2! = 2520
Number System The product of two consecutive odd numbers is 4095 What is the greater number ? 74 65 61 69 74 65 61 69 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the two consecutive odd numbers be 2x - 1 and 2x + 1.(2x - 1) (2x - 1) = 4095= 4x² - 1 = 4095= 4x² = 4096= x² = 1024∴ x = 32∴ The numbers are 63 and 65.Greater number = 65
Number System What is the sum of all even numbers from 1 to 701? 122550 123850 122850 122500 122550 123850 122850 122500 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 700/2 = 350350 * 351 = 122850
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