Number System Let R = qs—4. When s=8, R=16. When s=10, R is equal to 23 21 22 20 23 21 22 20 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 21
Number System The population of a town increases by 15% in the first year and decreases by 25% in the second year. If its current population is 168480 then what will be its population after two years ? 145914 145314 145714 145214 145914 145314 145714 145214 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Population of the town= 168480 x 115/100 x 75/100= 145314
Number System In a two-digit number, the digit in unit's place is two more than three times the digit in ten's place. If the sum of the two digits is 10, what is the number ? 24 18 22 28 24 18 22 28 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be 10x + y.∴ y = 3x + 2 .......(i)And, x + y = 10 ......(ii)From (i) and (ii), x = 2, y = 8∴ Number = 28
Number System (12)² - (4.4)² - (0.04)² = ? 131.6384 124.6384 125.6384 129.6384 131.6384 124.6384 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 sum of 4 consecutive odd numbers is 104, what will be the third number if they are arranged in ascending order ? 29 28 27 30 29 28 27 30 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the consecutive odd number be x, x + 2, x + 4 and x + 6 respectively.According to the question x + x + 2 + x + 4 + x + 6 = 104 = 4x + 12 = 104 = 4x = 104 - 12 = 92∴ x = 92/4 = 23∴ Required number = x + 4= 23 + 4 = 27
Number System Supply the missing figure : 1, 4, 9, 16, 25 .... 49 23 16 42 36 23 16 42 36 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 36
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