Using standard mathematical symbols, e.g. +, -, x, etc., rearrange (4) fives to equal the numbers one to ten. For example, 5/5 + 5 – 5 = 1, 5/5 + 5/5 = 2, etc.
Note : you can use decimal point (.) only once.
Answer :
to
The Winners:
The First
Noran
The Second
bino
The Third
EnasMohey
Then
Below are 10 skittles in an upside-down triangle shape, can you move the skittles around such that the triangle is the correct way up? You can move any skittle left or right, but, at most, you are only allowed to move three skittles up or down!
Answer:
0: since one of the terms is (x – x).
The Winners
The First
EnasMohey
The Second
Haytham Alaa
The Third
Hebatalla
Then
What does this equation simplify to?
(x – a) * (x – b) * (x – c) * … * (x – z) = ?
Answer
Using Pythagoras’ Theorem:
for the right-angled triangle in the figure
(r – a)2 + (r – b)2 = r2
Now, a = 6 cm and b = 12 cm. So,
(r – 6)2 + (r – 12)2 = r2 or
r2 – 2(6)r + 62 + r2 – 2(12)r + 122 = r2. This simplifies to
r2 – 36r + 180 = 0. On factorizing, we get
(r – 30)(r – 6) = 0.
Thus, the radius of the circle is 30 cm.
Area = 30 * 30 * pi.
The Winners:
The First
Eman Fateen
The Second
New
The Third
Rana
then
