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Let radius of the base of the cylinder = ‘r’ cm Area of the base of a cylinder = π × r2 So, (22/7) × r2 = 346.5 Or, r2 = 110.25 Or, r = 10.5 (Since, radius cannot be negative therefore we will take the positive root only) Let height of the cylinder = ‘h’ cm Now, the curved surface area cylinder = 2πrh So, 2 × (22/7) × 10.5 × h = 990 Or, h = (990/66) = 15 So, height of the cylinder = 15 cm
Total population of city P and Q is 3410 and 4620 respectively. If the ratio of number of males to females in city is P and Q is 7:4 and 4:3 respectivel...
Two vessels contain mixtures of milk and water in the ratio 7:3 and 5:4, respectively. Equal quantities from both vessels are mixed to form a new mixtur...
A fruit seller sells apples at a profit of 20% and oranges at a loss of 10%. If the ratio of apples to oranges sold is 3:2 and the overall profit is rup...
A boy is supposed to distribute Rs.2400 among his three friends P, Q and R in the ratio of 5:3:4 respectively, but mistakenly he distributed in the rati...
A bag contains 10-paisa, 20-paisa and 50-paisa coins in the ratio of 5:8:7, respectively. If the total amount in the bag is Rs. 35, then find 40% of the...
A bag contains 20 rupees note, 50 rupees note and 100 rupees note in the ratio 5:7:2. If the total amount in the bag is Rs 2,600, find the average numbe...
Ratio of runs scored by A, B and C is 3:10:8, respectively. Total number of runs scored by the team is 200, which is four times the runs scored by B. Fi...
A woman distributed her savings between her daughters A, B, C and D in the ratio 6 : 7 : 9 : 16. If A gives Rs. 600 from his share to C, the ratio of sh...
Ratio of income of A and B is 7:5 and the ratio of expenditure of A and B is 2:3. The savings of B is Rs.3500. If the expenditure of A gets double then...
If the surface areas of two spheres are in the ratio of 4 : 25, then find the ratio of their volumes.
