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The correct answer is D
The average weight of 48 students in a school is 32 kg. If two new students with weights of 'x' kg and '(x + 6)' kg join the group, the average weight o...
Average 20 numbers is ‘x’. If the average of first 12 numbers is 62.5 while average of last 5 numbers is 74.8 and 13th, 14th a...
The average of five positive numbers is 56. If the first number is three-fourth of the sum of the last four numbers, then the average of the last four n...
60% of 3840 +? + 30% of 4380 = 40% of 8340 + 10% of 3480
The average number of taxis of three colours (black, white and yellow) in a taxi stand is 100. The number of black taxis is 80 more than that of yellow ...
The average of 10 numbers is 102. The average of the first 5 numbers is 78 and the average of the last 4 numbers is 46. What is the 6th number?
In an office, there are 52 employees with an average weight of 38 kg. When the office manager's weight is included, the average w...
Average age of a class of 25 students is 13 years. Average age of the class is increased by 30 months if the age of the teacher is included. Find the ag...
A is 75% more than B. C is 60 less than A. Average of A, B and C is 340. The ratio of B and C is 2:x. Find the value of x.