Question
The radius of a cylindrical metal drum is 18 cm. The
height is 25% less than its radius. If 1 cm³ of the metal weighs 0.3 gm, find the total weight of the drum in kilograms. (Use π = 22/7)Solution
- The average of ‘x’ numbers is 20. If 65% of the numbers are decreased by 2 and the remaining numbers are increased by 5, then find the new average of t...
The ratio of the number of cats to sheep on a farm is 5:8. The total number of cats and sheep is 91. The combined weight of all t...
The average monthly expense of a family of 5 is ₹25,000. If the highest earning member moves out, the average drops to ₹20,000. Find the monthly exp...
There are three distinct numbers ‘u’, ‘v’ and ‘w’. If, u = 240, (u + v) = 540 and (w – v) = 60, then find the average of u, v and w.
...The average score of a class of boys and girls in examination is X. The ratio of boys and girls in the class is 4:3. If the average score of the boys (X...
The average of 25 numbers is 39.4. The average of the first 12 numbers is 36.5, and the average of the last 12 numbers is 40.5. Determine the value of t...
Find the average of prime numbers between 10 and 20 .
The combined average weight of 8 apples and 5 oranges is 150 grams. If the average weight of the apples is 180 grams, what is the average weight of the ...
The average of three numbers is 66. When three more numbers are included, the average increases by 6. Find the average of the numbers included.
While tabulation of marks scored in an examination by the students of a class, by mistake the marks scored by one student got recorded as 93 in place o...
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