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The perimeter of semicircle = 36 (π ×R) + 2R = 36 22/7 R + 2R = 36 R = 7 cm Hence height of cylinder = 7 cm 
In a tournament, the average score of eight batsmen in the Chennai team is 80. If the highest three scores are not considered, th...
The average age of A, B & C is 48 years. Ratio of present ages of A to C is 3:5 and present age of B is 33.33% more than that of A. find the difference...
The average of five consecutive natural numbers is 14. What will be the average of the seven numbers if the next two natural numbers are also included?
A number is such that when it is multiplied by 4, it gives another number which is as much above from 180 as the original number (itself) is below 180. ...
The average age of 32 children and their teacher's age are 28 years. If the teacher's age is excluded, the average reduces by 1. What is the teacher's age?
There are 15 numbers such that average of first 12 numbers is 65 while the average of last five numbers is 76. Find the 12th number, if the ratio betwee...
"In a group of four investors in stocks, the highest earner makes Rs. 5 lakh per month, while the lowest earner makes Rs. 2.4 lakh per month. Now, we wa...
The average age of 20 children and their teacher's age are 18 years. If the teacher's age is excluded, the average reduces by 1. What is the teacher's age?
Average age of a class of 33 students is 14 years. Average age of the class is increased by 18 months if the age of the teacher is included. Find the ag...
