Number System (12)² - (4.4)² - (0.04)² = ? 124.6384 131.6384 125.6384 129.6384 124.6384 131.6384 125.6384 129.6384 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (12)² - (4.4)² - (0.04)²= 144 - 19.36 - 0.0016= 124.64 - 0.0016= 124.6384
Number System If the difference between a number and two-fifths of that number is 45 what is the number ? 78 76 77 75 78 76 77 75 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x ∴ x - 2x/5 = 45∴ x = 75
Number System 728.038 x 54.978 - 72.016 x 85.250 = ? 33900 43900 23900 53900 33900 43900 23900 53900 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 728 x 55 - 72 x 85.25 = 40040 - 6138 = 339900
Number System The difference between 35% of a number and 18% of the same number is 93.5 then what is the 40% of that number ? 232 225 220 245 232 225 220 245 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Diff = (35 - 18)% of x = 93.517x/100 = 93.5Therefore, x = 550Therefore, 40% of 550 = 220
Number System In how many different ways can the letters of word 'BIOLOGY' be arranged ? 2367 2520 2678 2410 2367 2520 2678 2410 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In BIOLOGY total 7 letters are there but O comes twice.∴ Number of arrangements = 7!/2! = 2520
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