Number System 36% of 850+? % of 592 = 750 12.5 75 50 25 12.5 75 50 25 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 75
Number System When the square of a number is substracted from (68)², the answer so obtained is 2508. What is the number ? 46 45 47 44 46 45 47 44 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (68)² - x² = 2508Therefore, x² = 4624 = 2508Therefore, x = root of 2116 = 46
Number System A bag contains eighteen 25-paise coins, seventeen 50-paise coins, twentytwo one-rupee coins, nine 2-rupee coins and three 5-rupee coins. What is the total amount in the bag (Ans in rupees) ? Rs. 68 Rs. 79 Rs. 74 Rs. 62 Rs. 68 Rs. 79 Rs. 74 Rs. 62 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Total = 18/7 + 17/2 + 22 + 9 x 2 + 3 x 5 = 4.5 + 8.5 + 22 + 18 + 15 = Rs 68
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 How many numbers up to 100 and 300 are divisible by 11? 21 18 22 20 21 18 22 20 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (300 – 100)/11 = 200/11 = 18 2/1118 Numbers
Number System Simplify the 121 * 175 + 363 * 275 None of these 328100 363000 316600 None of these 328100 363000 316600 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 121 * 175 + 363 * 275 => 121 * 175 + 121 * 3 * 275121 * 175 + 121 * 825= 121 * (175 + 825) = 121000
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