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√(3x-2)+ √(3x+2) = 4+ 2√5 Squaring on both sides, 
= or or So by comparing the constant part of LHS & RHS, 6x = 36 or x = 6.
The average of 25 numbers is 40. If 2 is added to each number, then the new average will be:
The average monthly contribution of 25 members in a project is Rs. 8,400. Following a fee increase, the new monthly average contribution per member is R...
The average number of books on history, polity and geography in a library is 150, and the average number of books on history and geography is 140. If th...
In a school with 400 students, the average of the age of the boys is 16 years and that of the girls is 12 years. If the average age of the school is 14 ...
The average weight of five friends A, B, C, D and E is (x+5) years while the average weight of C and E is (x-5) kg. If the weight of another person F is...
The average score obtained by 25 students in a class test is 68 marks. The top place was shared by 3 people who got the same score. If the lowest score ...
The average number of taxis of three colours (black, white and yellow) in a taxi stand is 140. The number of black taxis is 50 more than that of yellow ...
Average age of company A is 25 years and average age of both companies A and B is 17 years. If the ratio of number of employees in company A and B is 3:...
The average expenditure of a man for the first 4 month is Rs.5000 and for the next 8 months is Rs.8000. If he saves 12000 in that year then find his ave...
The average weight of 12 students in a dance class is 45 kg. If the weight of 3 instructors is also included, then the new average weight of each person...
