Question
A shopkeeper sells an article at profit of 20% and uses
a weight of 25% less instead of 1 kg. Find his actual profit?Solution
- The earnings of βPβ, βQβ and βRβ are in the ratio 6:9:10 respectively. The average income of the three is Rs. 12,000. If βPβ, βQβ and οΏ½...
- The average age of (x + 6) students of a class is 16 years. If the 40 years old class teacher is also included then average age of the class gets increased...
- The average weight of 10 individuals in an organization is 50 kg. When two new members, Akash and Binny, join the organization, their weights being in the ...
Average of 15 observations calculated by a student was 65 but when he again went through his observations he realised that he took value of three observ...
A bag contains 6 red, 10 yellow, and 14 black balls. If 2 balls are picked at random without replacement, find the probability that the first ball is re...
- The average of five numbers is 62. When three more numbers are included, the average increases by 6. Find the average of the numbers included.
The mean weight of 'w' students in a classroom is 42 kg. When the class teacher, weighing 61.5 kg, is added to the group, the average weight increases b...
Average of 20 numbers is 90. Average of first 8 numbers is 103 while average of last nine numbers is 40. If ninth number is 25% less than the tenth numb...
In a company team of 18 members, the average age is 29 years. When 6 more members join, the average age falls to 26. What is the average age of the new ...
The average expenditure of a man for the first five month is Rs.14000 and for the next seven months is Rs.12000. If he saves 17000 in that year then fin...
