Number System (√6 + 1)² = ? + 2√6 7 6 8 5 7 6 8 5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = (√6 + 1)² - 2√6= (√6)² + 2 x √6 + 1 + 1² - 2√6= 6 + 2√6 + 1 - 2√6 = 6 + 1 = 7
Number System The sum of the present age of a father and a son is 60 years. Five years before, the age of the father was four times that of son. What is the present age of the son ? 18 years 25 years 21 years 15 years 18 years 25 years 21 years 15 years ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the father's age be x and son's age yTherefore, x + y = 60 ....................(i)Five years back, (x - 5) = 4 (y - 5)x - 4y = - 15 ......................(2)Solving (1) and (2), x = 45 and y = 15
Number System Let R = qs—4. When s=8, R=16. When s=10, R is equal to 22 21 23 20 22 21 23 20 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 21
Number System The simplest form of 1.5 : 2.5 is : 17 : 19 13 : 11 5 : 7 3 : 5 17 : 19 13 : 11 5 : 7 3 : 5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3 : 5
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 Three numbers which are co-prime to one another are such that the product of the first two 551 and that of the last two is 1073. The sum of the three numbers is 93 110 85 74 93 110 85 74 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 85
EXAMIANS