Number System (12)² - (4.4)² - (0.04)² = ? 124.6384 125.6384 131.6384 129.6384 124.6384 125.6384 131.6384 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 What is the difference between the largest number and the least number written with the figures 3, 4, 7, 0, 3? 43983 43893 43883 70983 43983 43893 43883 70983 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 74330 Largest30347 Smallest-------------43983
Number System {(742)² ÷ 36} ÷ 2 = ? 420.5 421.5 422.5 423.5 420.5 421.5 422.5 423.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = (174 x 174/36) ÷ 2 = 841/2 = 420.5
Number System If the difference between the squares of two consecutive numbers is 47, what is the smaller number ? 24 26 23 25 24 26 23 25 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be (x + 1) and x.Therefore, (x + 1)² - x² = 47x² + 2x + 1 - x² = 472x + 1 = 47Therefore, x = 46/2 = 23
Number System The peresent age of the father and the son are in the ratio of 8:3. After 12 years the ratio of their ages will be 2:1. What is the sum of the present age of the father and the son ? 67 years 68 years 69 years 66 years 67 years 68 years 69 years 66 years ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the present age of the father be 'x' and that of the son be 'y'. Then x/y = 8/3∴ 3x = 8y Further, x + 12/y + 12 = 2/1 ∴ x + 12 = 2y + 24 ∴ x - 2y = 12 ......(ii)From eqn (i) and (ii), x = 48, y = 18 ∴ sum = 66 yrs.
Number System Difference between two numbers is 5, six times of the smaller lacks by 6 from the four times of the greater. Find the numbers? 12, 9 11, 6 10, 5 12, 7 12, 9 11, 6 10, 5 12, 7 ANSWER DOWNLOAD EXAMIANS APP
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