Number System √343 = ? 20 19 18 21 20 19 18 21 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √343 = 18
Number System What is the missing number in this series? 8 2 14 6 11 ? 14 6 18 12 2 9 7 3 2 9 7 3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 9
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 44 47 45 46 44 47 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (68)² - x² = 2508Therefore, x² = 4624 = 2508Therefore, x = root of 2116 = 46
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% ? 29 litre 25 litre 17 litre 21 litre 29 litre 25 litre 17 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 The difference of two numbers is 1365. On dividing the larger number by the smaller, we get 6 as quotient and 15 as remainder. What is the smaller number? 295 360 270 240 295 360 270 240 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the smallest number be x.Then larger number = (x + 1365)x + 1365 = 6x + 15= 5x = 1350 x = 270Smaller number = 270.
Number System Complete the series : 1, 8, 27, 64, 125, 216 ..... 353 343 363 373 353 343 363 373 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 343
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