Question
The volume of the conical tent is 1232 m3 and
the area of its base is 154m2.Find the length of canvas required to build the tent. If the width of canvas is 5 meters.Solution
Πr2 =154 22/7×r2=154 R = 7cm And now volume of the conical tent =1232 1/3πr2 h=1232 1/3 ×22/7 ×49 ×h = 1232 h= (1232×7×3)/22×49=24m l = √ 576+49 = √ 625 =25cm Area of the canvas required to build the tent = π r l Which will equal to the area of the rectangular canvas. π r l = 2×length of canvas 22/7× 7×25 = 5 × length of canvas length of canvas =22×5 = 110m
The average of 8 numbers is 22. When two new numbers 'p' and 'q' are added, the average increases by 3. If p - q = 10, find the value of q.
The combined average number of pens with persons ‘B’ and ‘C’ is 75% of the combined average number of pens with persons ‘A’ and ‘D’. The...
Rohit contributed 96 runs, which was 60% of his team’s total score. If the team got 12 runs as extras, how many runs were made by the rest of the play...
The average number of sweets distributed in a class of 90 students is 6. If lsquo;xrsquo; number of students newly joined the class and the average beco...
5 positive numbers are written on a piece of paper. Sum of first 3 numbers is 55 and ratio of the 4th and the 5th number is 2:3. If difference between t...
The average weight of five friends A, B, C, D and E is (x+8) years while the average weight of C and E is (x-8) kg. If the weight of another person F is...
The average of four consecutive odd numbers is 34. Find the largest of these numbers.
In a company, the average salary of 30 employees is ₹40,000. Out of these, the average salary of 20 employees is ₹35,000, and the average salary of ...
In a school, there are 30 male students and 20 female students. The average marks of male students is 58 and that of female students is 62. Calculate th...
The present average age of X, Y, and Z is 45 years. 8 years ago, the average age of X and Y was 38 years. What is the present age of Z?
Relevant for Exams:
