Math, asked by Mirnalini6, 1 year ago

ans this if u r brilliant

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Mirnalini6: 15+9+6 write in paper
Mirnalini6: turn up side down
Mirnalini6: 6 looks like 9
Mirnalini6: ok
Mirnalini6: bye

Answers

Answered by rohitkumargupta
18
HELLO DEAR,

we know that it is impossible to get a even number by adding three odd numbers.


------------------(1)--------------------


if we know the factorial

we can also solve by using factorial

3! =3×2×1 =6

(11) + (13) +(3!) =30


---------------------(2)---------------------

we can also do like that:-

(1+9) + (3+7) +(5+5) = 10 + 10 +10 =30



I HOPE ITS HELP YOU DEAR,
THANKS

rohitkumargupta: kya
rohitkumargupta: ok
Nikki57: Kudos!
Mirnalini6: yes
rohitkumargupta: thanks
Answered by HappiestWriter012
11
Hey there!

A similar question is already posted by one of our brainliac and is answered by me.

brainly.in/question/1152794

https://brainly.in/question/1183248

This question can be solved by binomial co-efficients

we know Ncr =n!/r! (n-r)!
5!=120
3! =6
2!=2
So 5c3 =5! /3!(5-3)!

=> 120/6*2!

=> 120/6*2

=> 120/12

=> 10

Finally,

=> 15+5+ [ 5C 3]=30

=> 15+5+10=30

hence proved !
It is so easy
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