Who says zero doesn't count!

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Solve this logic number sequence puzzle with the correct digit:

$8080 \longrightarrow 6$ $1357 \longrightarrow 0$ $2022 \longrightarrow 1$ $1999 \longrightarrow 3$ $6666 \longrightarrow ?$

0 1 2 3 4 5

15 solutions

Putu Pradnyana Iswara
Dec 3, 2014

8080 = has 6 "holes" 1367 = doesn't have hole 2022 = has 1 "holes" 1999 = has 3 "holes" 6666 = has 4 "holes"

it's "1357"

Trí Onii-sama - 6 years, 6 months ago

I got the right answer, but was I the only one who thought of the perfect square number pattern? number of perfect squares without repeating itself exceot the number 1 not included? For example 1999, thouse three 9s can be squared 3 times. 1367 ,except 1 , doesn't have any perfect square, 2022 = 1 because 0x0 = 0 which makes it a perfect square

Jao Garcia - 6 years, 6 months ago

But 1 is a square.

Whitney Clark - 5 years, 4 months ago

1367 has one "hole"! where is the logic?

Etienne Giroire - 5 years, 4 months ago

He goofed. It's supposed to be 1357.

Whitney Clark - 5 years, 4 months ago

Ishan Mishra
Dec 3, 2014

The number on the right refers to the number of times you would make a loop or circle while writing the number on the left. For example, when you write "0," you are making one circle/loop. When you write 8, you are making two circles, one on top of the other.

Thus, 6666 should equal 4, as you make 4 loops while writing the number.

Rogelio Isidro
Dec 3, 2014

8080=has 6 holes, 1357=none, 2022=one hole, 1999=3 holes, 6666=has 4 holes

ভোরের শিশির
Dec 4, 2014

here 8080 has 2 loops. that means round circle. bt 1357 has none. on the way 6666 has 4 loops 0000 by omitting the upper part of 6.

Gitesh Yadav
Dec 3, 2014

Will any body explain it in confined way

Kenneth Declaro
Jan 23, 2016

It is basically asking how many loops or 'holes' are there given the set of digits. 8080 has loops. '8' has 2 loops. Since there are two 8's, there are already 4 loops in it. '0' already counts as 1 loop. There are two 0's, thus 2 more loops, making a total of 6 loops.

Narkedamilli Vikas
Dec 10, 2014

8080=6holes 1367=not has holes 2022=has1holes 1999=has3holes 6666=has4 holes

Sahil Kumar
Dec 4, 2014

It is the Number's of Holes

Sukumar Smart
Dec 4, 2014

all that closed portions count. so 8080 has 6 circular closed portions, and the rest corresponds to the values given. so 6666 has 4 circular closed portions on in each '6' so the answer hits 4

Sushant Pandita
Dec 4, 2014

It's the number of holes

Ahmed Morsy
Dec 3, 2014

8080 = 6 holes / 1999 = 3 holes / 6666= 4 holes

Arka Bhowmik
Dec 3, 2014

Follow your neuroplasticity mania

Deepak Raj
Dec 3, 2014

The number of loops linked with in the digits of the numbers is what is given to the right hand side of the =

0 has one loop. 8 has two. Likewise.

Vignesh Kiswanth
Dec 3, 2014

This logic refers to number of zeros (zero like structure in all numbers) For example in 8, there are 2 zeros. 1,2,3,4,5,7 has no zeros. 0,6 has 2. Thus for 6666, there are 4 .

Could u plz explain what is zero like structure???

Naman Kapoor - 6 years, 6 months ago

Zero like structure is wat u see in last letter of the word zero

Viv Jain - 6 years, 6 months ago

Vaijesh Kotwal
Dec 3, 2014

Digit 8 has two zero like structures.......so 8080 has 6, 0 like structures......so on.....

Who says zero doesn't count!

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