Number System 68375 + 72848 - ? = 34346 + 49569 57308 58308 59308 None of these 57308 58308 59308 None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 68375 + 72848 - 34346 - 49569 = 141223 - 83915 = 57308
Number System 7.98 x 3.75 + 1.28 x 15.5 = ? 48.765 49.765 46.765 47.765 48.765 49.765 46.765 47.765 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 29.925 + 19.84 = 49.765
Number System (12)² - (4.4)² - (0.04)² = ? 129.6384 124.6384 131.6384 125.6384 129.6384 124.6384 131.6384 125.6384 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 one third of 3/4 of a number is 21. Then find the number? 84 840 630 63 84 840 630 63 ANSWER DOWNLOAD EXAMIANS APP
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 ? 66 years 69 years 67 years 68 years 66 years 69 years 67 years 68 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 When the square of a number is substracted from (68)², the answer so obtained is 2508. What is the number ? 45 46 47 44 45 46 47 44 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (68)² - x² = 2508Therefore, x² = 4624 = 2508Therefore, x = root of 2116 = 46
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