Question
A right circular cylinder having diameter 21 cm & height
38 cm is full of ice cream. The ice cream is to be filled in cones of height 12 cm and diameter 7 cm having a hemispherical shape on the top. The number of such cones to be filled with ice cream isSolution
ATQ, Volume of a right circular cylinder = 4/3πr²h Volume of hemisphere = 2/3πr² Volume of cone = Volume of cylinder + Volume of hemisphere = 1/3πr²h + 2/3πr² Given, Volume of right circular cylinder = n [Volume of cone + Volume of hemisphere] Therefore, 4/3πr²h = n [1/3πr²h + 2/3πr² ] Implies, π x 21² x 38 = n π / 3 x 7² / 4 [12 + 2 x 7 / 2] Implies, 21 x 21 x 38 = (n x 7 x 7) / 12 x 19 Implies, n = (21 x 21 x 38 x 12) / (7 x 7 x 19) = 216
Seven persons D, E, F, G, H, I and J went to Delhi on seven different days of a week starting from Monday. Only two persons went before I. At least two...
How many persons are celebrating between F and the one who works in Tech Mahindra?
Four of the following five are alike in a certain way and hence they form a group. Which one of the following does not belong to that group?
- There are 6 boxes, S, T, U, V, W and X, which are kept one above the other. Box T is 3 boxes above box U. There is a gap of one box between box T and box W...
How many persons were born between J and O?
Six persons A, B, C, D, E, and F live in a building of six-floors such that the bottommost floor is numbered as 1 and the topmost floor is numbered as 6...
Who among the following live on the topmost floor?
On which floor does the person live who likes Shreya ghoshal?
Which of the following word is coded as “cfz”?
In the questions given below there are three statements followed by three conclusions I, II and III. You have to take the three given statements to be ...
