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### CAT EXAM Riddle

CAT EXAM Riddle - 30 September

There is a shop that reads:
10 for \$2.00
100 for \$3.00
I needed 913 and still only paid \$3.00. How could this be financially viable for the shop-keeper?

1. Because price of the goods depends on the no of digits in the value.Since number of digits in 913 is equal to 3 ,So he needs to pay only \$3.

1. He is buying house numbers. To buy 1 number, it costs \$1, to buy 3 numbers it costs \$3. He is still buying only 3 numbers, and so it only costs \$3.

2. he never stated what he was selling

3. i thought it stole the rest

4. I thought that he needed 913 but he only bought 100

5. I figured that one digit is \$1

913 is 3 digits so it would cost \$3

He was buying a house #

6. I've already heard this riddle before... :P

7. Its true its never stated that this 1, 10, 100 is the number of pieces you buy. But its not said also that if it is peaces, how much will cost 9 pieces, or 99 pieces. If we the pack allows ot be wraped 9 at once, 99 at once and 999 at once, and the packs are what is expensive, and the items are free, then... Lets say if u have 1 computer, you buy rooter with 9 outputs, If you have 10 computers, you buy one with 99 outputs, if u have 100 computers you buy one rooter with 999 outputs. if you have 1000 computers you buy one with 9999, pay 4\$. So basicly the seller is selling outputs, and he is showing only the number at wich the price is changing. I have also other crazy ideas. What if its some kind of sertificate selling ? Lets say for counts of sheep 1 sert = 1-9, 2 sert = 10-99, 3sert = 100-999. Like regresive taxing of your sheeps...

2. as he needs 913 items.....i think he purchased only 100 and paid \$3

3. awesome nand... i donno whether the answer is right. but i liked the way you interpreted it.

4. i guess, it was a number which the guy was selling may be to print on a T-Shirt or something and as 913 is a 3 Digit number he charged him \$3

1. May be this is the correct answer!

5. My guess is ...
If 1 is for \$1, 10 for \$2, 100 for \$3, then by analogy, 1000 will be for \$4.
Buy 1000 for \$4 and sell 87 for \$1 back to the shop-keeper. The shop-keeper would readily buy 87 for \$1 since its selling price will be much higher than \$1 :)
So, the customer can still get 913 for \$3... :)

1. My thoughts exactly

2. He was buying house numbers, you're over thinking it.

6. This is a sort of combination of geometric+arithmetic series.By the rates mentioned,1000 items will cost \$4.Anything from 1 to 10 pieces will cost \$1,anything from 10 to 100 pieces will cost \$2so going by this rule,since 913 is between 100 and 1000,it will cost \$3.

7. you needed 913 but you only got 100 making the price \$3

8. take 6times 100 for \$18
take 41times 10 for \$82
sold 97times 1 for -\$97
so total items = 600 + 410 - 97 = 913
total price = 18 + 82 - 97 = \$3

1. dang i'd have never thought of that XD

9. Hes selling house numbers. Each digit is \$1

10. This comment has been removed by a blog administrator.

11. the shop sells house numbers. one house number cost \$1 (9). two house number cost \$2 (91). three house numbers cost \$3 (913)

12. it's in binary

13. the shop sells house numbers

14. it has some pretty good sales

15. The shop sells birthday candles, ex: "1", "2", "9". All at a dollar a piece.

16. You were buying numbers for your house and each number is worth a dollar

17. You were buying numbers for your house and each number is worth a dollar

18. He already had 813, saying it was a craftable item produced with natural resources. With the given info, He had mad 813 but was too tired so he eventually decide to pay for the 100 remaining which only cost
\$100

1. Edit: \$3 for the 100. (:

19. be one hell of a negotiator

1. A heck of a negotiator, man!
lol

20. It is becuse of the number of digits in the number, that willbe the price. (EX.) 5,170, \$4/ 6,000,000,000, \$10

21. just like buying digits for ur cars number plate

22. The shop keeper is killed, the items stolen, out of poor morality \$3 is given to the store.

23. LOLOL all you guys! He needed the house number 913, he bought 100 signs for 3 dollars.

1. Thats just weird.

24. The guy bought 913 specks of dirt XP.

25. house numbers! 1 dollar for each number

26. dang XD i knew the answer you guys are all wrong........ lol.. Seriously? house numbers?
its VERY obvious..

27. It is Clearly Menitioned that Shop that "Reads"...
But hasnt mentioned that what to

28. he needed 913....but he still bought 100 for \$3

1. He bought 100 and stole the rest

29. i changed it a little and thought it was an address like 913 was the address and well sense their were 3 numbers in the " address " the house only cost three numbers. The riddle can be changed to were it fits my solution or at least were it make's my answer not as confusing.

30. sorry, little mistake , it was really " three DOLLARS ". :D

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32. I agree the answer should be that he was buying house numbers, however it could also be said that the shopkeeper was selling packs of items (for arguments sake lets say packs of wolves :P) and each pack contained 83 wolves. If he bought 1 pack for \$1.00 and 10 packs for \$2.00 he would have 913 wolves (11 x 83 = 913).

33. Or maybe because he just gets them cheap from the shady guy on the corner

34. HE IS JUST STUPID

35. The man bought an organic that can procreate.

One does not need to buy 100 apple trees to get 100 apples, if you get my drift.

36. 1 digit is \$1.00, 2 digits is 2.00, 3 digits is \$3.00

37. 1000 for 4\$... and 100-1000 everything 3\$... so 913 3\$

38. They need their house number which is 913 so \$1 for each digit which means \$3 because \$1 add \$1 add \$1 is \$3. Duh!

39. Thankyou for the above information.
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40. Assuming that each dollar multiplys the coorosponding number by 10 since 913 is in the hundreds place and 100 and 3.00 are corresponding divide 913 by 33.3333 which is 100 divided by 3.00 do this 4 times because the next step up is the thousands place then multiply by three and out should give you the amount due