Question

please solve this question.

Answer 1

We need to find the volume of both the objects.

Tablets :-

Radius = 7mm
Thickness = 5mm

We can take thickness as height

So volume = πr²h

[Since the figure forms a cylinder]

=> volume of 1 Tablet =
$\frac{22}{7} \times 7(7) 5 \\ \\ = > 22(7)5 \\ \\ = > 770$

So the volume of 1 Tablet is 770mm³

Now volume of the wrapper

Radius = 14/2 = 7mm
Height = 10 cm = 100mm

So volume = πr²h

=>
$\frac{22}{7} \times 7(7)100 \\ \\ = > 22 \times 7(100) \\ \\ = > 15400$

So the volume of wrapper is 15,400mm³

Now in order to find how many tablets can be wrapped, we need to divide the volume of wrapper by volume of tablets

=> Number of tablets =

$\frac{15400}{770} = 20$

20 Tablets can be wrapped inside the wrapper.

Hope it helps dear friend ☺️

Answer 2

We have to find here volume of cylinder.
so we know that it is pie r square rh
= 22/7 x 7 x7 x 5
= 770 mm.
this is a volume of tablets
Now we find volume of wrapper
pie r square h
= 22/7 x 7 x 7 x 100mm (m to mm)
= 15400mm
now = 1540/770
20 is answer