An easy puzzle 4

Number Theory Level 1

Can you find the number ?

it's easy .....


The answer is 9.

Ahmed Salah by Ahmed Salah , 24, Egypt

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3 solutions

Ashish Menon
May 30, 2016

7 − 9 + 5 = 3 3 − 4 + 3 = 2 x − 8 + 1 = 2 x = 9 7 - 9 + 5 = 3\\ 3 - 4 + 3 = 2\\ x - 8 + 1 = 2\\ x = \color{#69047E}{\boxed{9}}

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Noha Ismail
Oct 10, 2014

I think that: two triangles are subtracted (the secand one - the first triangle) then sum the previous answer with the number in the rectangle gives the number in the circule :D 9-5= 4 then 4+3= 7 4-3= 1 then 1+2= 3 So 8-1= 7 then 7+2=9 the answer.

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Ahmed Salah
Jun 11, 2014

1: 3+9-7=5 2: 2+4-3=3 3: 2+8-9=1 the answer

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You can also find the difference of the first triangle and the square, which will be equal to the difference of the second triangle and circle.

Kevin Mo - 6 years, 9 months ago

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