The document contains 10 math problems with their solutions. The problems cover a range of topics including ratios, simple interest, combinations, sequences, slopes, greatest common factors, least common multiples, prime numbers, circles, and joint work problems. The solutions provided are: 300, 450, 600 pesos; 22%; 720 ways; 704; undefined; 60; 1800; 28; 81pi sq units; and 3 hours.