# Olympiad Math: Problem of the Week (December 14 – December 21, 2013)

Weird subsets

How many subsets in {m,a,t,h,b,l,o,g,s}  have at least one vowel?

1. Quant Master. (Identify yourself in comment please)

2. Jeffry Robles. University of the Philippines- Diliman

3. Arsh Singh. yourmathguru.com

4. Muthu Krishna. Kle College , Bengaluru

5. ambi ( tired of reminding)

6. Huzaifa Abbasi

7. Kennard Ong Sychingping, De La Salle University

8. John Michael Maninang. UST

10. Paolo Go. DLSU-D

11. Regin N. Manamba – University of Southern Mindanao-Kabacan

### Dan

Blogger and a Math enthusiast. Has no interest in Mathematics until MMC came. Aside from doing math, he also loves to travel and watch movies.

### 10 Responses

1. Quant Master says:

2^9 – 2^7 = (2^2 – 1)2^7 = 384

2. Michael Banaylo says:

381? (3)(7C1 + 7C2 + … + 7C7)
Michael Banaylo
Negros Occidental HS

3. ambi says:

384

4. Huzaifa Abbasi says:

384

5. JM Maninang says:

384

JM Maninang. UST

6. sukumar says:

the no of subset is 384

7. Regin N. Manamba - University of Southern Mindanao-Kabacan says:

384 subsets

8. Laquanda says:

Attractive section of content. I just stumbled upon your weblog and in accession capital to assert that I get actually enjoyed account your blog posts. Any way I’ll be subscribing to your augment and even I achievement you access consistently rapidly.

9. I do not even know how I finished up here, however I believed this submit used to be great. I do not know who you’re however certainly you are going to a famous blogger in the event you aren’t already 😉 Cheers!