The average of 35 numbers is 50. If 5 is added to each number, then the new average will be:
The average expenditure of a man for the first 8 month is Rs.4000 and for the next 4 months is Rs.6000. If he saves 10000 in that year then find his ave...
Determine the value of a − b given that a + 3b = 18a and 3a + b = 30 .
- The average of series 'S6', which consists of 6 consecutive even numbers, is 27. The second term of series 'T6', which consists of 5 consecutive odd number...
A class has 20 boys and 15 girls. The average marks of boys is 68 and of girls is 72. Find the approximate average marks of the whole class.
The average cost price of 25 pens (having equal cost price) decreased by Rs.4, when one of the pen is replaced by a new pen having cost price of Rs.60. ...
Average weight of all the people in a group is 61 kg. When two people of weight 66 kg and 84 kg left the group, average weight reduces by 1 kg. Find the...
Average marks scored by each boy in a class were 70, whereas that by each girl were 80. If the number of boys is 50% more than the number of girls, then...
In a workshop of 50 participants, the average age is 40 years. One participant aged 38 leaves, and 5 new participants with an average age of 44 join. Wh...
The average of n numbers is 66. If each of 54% of the numbers is increased by 13 and each of the remaining numbers is decreased by 12, then the n...
