# Thread: a a tricky one

1. ## a a tricky one

in a soap company,a soap is manufactured with 11 parts.....for making one soap,u will get one part as a scrap...at the end of the day,u have 251 such scraps....from that ,how many soaps can be manufactured??

2. ## Re: a a tricky one

This is a wild guess . Is it 24.

3. ## Re: a a tricky one

It is 22 soaps

4. ## Re: a a tricky one

Originally Posted by hari_nowayout
in a soap company,a soap is manufactured with 11 parts.....for making one soap,u will get one part as a scrap...at the end of the day,u have 251 such scraps....from that ,how many soaps can be manufactured??
the soaps that can be manufactured are 24

5. ## Re: a a tricky one

I think you can make 25 soaps and you will stil have 1 part with you

Wrote a simple algo to find that in perl

\$w = 251;
print w2soap(\\$w);
sub w2soap {
my(\$wref)=@_;
my \$x = int(\$\$wref/11);
\$\$wref = \$x + (\$\$wref &#37; 11);
if(\$\$wref >= 11){
\$x = \$x + w2soap(\$wref);
}
print "Returning \$x\n";
return \$x;
}

6. ## Re: a a tricky one

Now a similar question

If for every 3 wrappers I get 1 soap free ( with wrapper of course )
How many soaps do I need to buy to get 20 soaps

7. ## Re: a a tricky one

we can get 25 soaps by end of the day

8. ## Re: a a tricky one

i think we can make 251 soaps

9. ## Re: a a tricky one

hi friend..

i think it is 251

Thanks
Deepasree

10. ## Re: a a tricky one

Hi,

I think it's 25.

Because form 251 scraps you can make 22 soaps and 9 scraps remain. And by making 22 soaps you will get 22 more scraps so from that you can make 2 more soaps. And by making those 2 soaps you will get 2 scraps. And those 2 scraps with the previously remained 9 scraps will make one more soap. And for the last one you made, you'll get one more scrap. That of course will be the reminder.

No. of soaps are 22+2+1 = 25

So, there will be 25 soaps and 1 scrap.

_Niki_

11. ## Re: a a tricky one

hi,

i think it may be 251

Thanks
Sushma

12. ## Re: a a tricky one

Answer: 25 soups

11 scraps = 1 soup manufactured ( given )

With 251 scraps = 22 soups manufactured, and each soup gave one scrap i.e. 22 scrap + 9 scrap still remained. So, now we total 22+9 = 31 scraps still remained.

With 31 scraps = 2 soups manufactured, and each soup gave one scrap i.e. 2 scraps + 9 scrap still remained. So, now we have 2+9 = 11 scraps still remained.

With 11 parts = 1 soups manufactured, and it gave one scrap.

In Total, 22 + 2 + 1 i.e 25 soups . ( with 1 scrap still remained.)

But the question was how many soaps can be manufactured?? so the answer to it is ' 25 ' soups can be manufactured by end of the day. !!..
Forget about the scraps they aren't asking about remained scraps.

Few have answered it correctly ... 3 cheers.

Cheers,
Anup | Mahindrakar

13. ## Re: a a tricky one

Answer for ramprasad.ap question.

Question:
Now a similar question
If for every 3 wrappers I get 1 soap free ( with wrapper of course )
How many soaps do I need to buy to get 20 soaps

Answer:
To buy get 20 soups you need to buy atleast 14 soups.

Explanation:
Buy 14 soups, you will have 14 soups + 14 wrappers,

With 14 wrappers, you can have 4 soups and along with it 4 wrappers + 2 wrappers remaining. Total you have 6 wrappers left.

With 6 wrappers, you can have 2 soups and 2 wrappers. So in total you have (14 +4 +2 soups + 2 wrappers still remaining ).

Ramprasad is this OK ? Kindly confirm.

Cheers,
Anup | Mahindrakar

14. ## Re: a a tricky one

Originally Posted by hari_nowayout
in a soap company,a soap is manufactured with 11 parts.....for making one soap,u will get one part as a scrap...at the end of the day,u have 251 such scraps....from that ,how many soaps can be manufactured??
Ans: 25 (22+2+1)

(251 %11) +(22%11) +1)

15. ## Re: a a tricky one

its 25 n 1 part as scrap...

16. ## Re: a a tricky one

I think the answer is :22

17. ## Re: a a tricky one

It should be 21 soap i.e,
Step 1: 251/11 =22.81 approximately 23 soaps(23*11=253)
Step 2:Remove a part as a scrap from 23 soap(253-23=230)
Step 3:Now divede 230 by 11 its approximately 21(20.90)

18. ## Re: a a tricky one

it s exactly 25soaps........(251/11)+ (22/11)+( 1)= 24

19. ## Re: a a tricky one

24 soaps can be made ,9 scraps will remain left

20. ## Re: a a tricky one

25 remainder 1

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