18 April : Maximum how many spherical balls of radius 2cm can be put inside a cubical closed box of side 20cm
17th April : If there are 4 tangential circles with two common direct tangents (as shown in the fig) then find the length of OP if, O is tangential point is P is tangential point on the largest circle and radii of first two smaller circles are 1 and 2 unit respectively.
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Maximum height 4+8✓3
So number of layers 6
In one layer 15+12 = 27
Total 27*6. = 162
125
150
Pls sir bahut tej ho jaa raha hai
Pls slow sir
And pls Hindi ka bhi use kijiye sir
1000 balls
125
239 (approximate)
125
125
125
125 balls
1000
25 in 1 roy and and there is 5 Roy because diameter of spherical ball is 4.
So 25*5=125 ball
80
125
125
5*5*5 = 125
125
125
125,
125 balls. I did it by filling square first and then multiplying height. [(5 x 5) x 5 = 125]
125
125
125
1000