Number System 56.21 +2.36+5.41 —21.4+1.5=? 54.08 34.08 64.08 44.08 54.08 34.08 64.08 44.08 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 44.08
Number System In a five-litre mixture of milk and water the portion of water is 30%. How much milk should be added to the mixture so that the portion of water reduces to 5% ? 25 litre 17 litre 29 litre 21 litre 25 litre 17 litre 29 litre 21 litre ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Original mixture = 5 litre; Milk = 3.5 litre;Water = 1.5 litre Let x litre of milk be added so thatthe mixture becomes (x + 5) litres and the percentage of water becomes 5%So, 1.5 = (x + 5) x 5/10030 = x + 5∴ x = 25 litre
Number System When the square of a number is substracted from (68)², the answer so obtained is 2508. What is the number ? 45 44 47 46 45 44 47 46 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (68)² - x² = 2508Therefore, x² = 4624 = 2508Therefore, x = root of 2116 = 46
Number System 64% of 2650+40% 0f 320=? 1824 1578 1247 2096 1824 1578 1247 2096 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1824
Number System Which one of the following represents the sum of the first n even numbers? N2 N(N + 1) N(N – 1) N2+ 1 N2 N(N + 1) N(N – 1) N2+ 1 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP N (N + 1)
Number System (444 x 44 x 4) ÷ 40 ? 1853.6 2153.6 2053.6 1953.6 1853.6 2153.6 2053.6 1953.6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 444 x 44 x 4/40 = 1953.6
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