2. Mechanics:
1. Each contestant shall provide 5 pieces of yellow paper
for the solution.
2. The contestants will be given a piece of bond paper which
will serve as their answer sheet.
3. The questions will be flashed and will be read twice
before answer.
4. Each level have different timer, 30 seconds for easy, 45
seconds for average and 1 minute for difficult round.
5. There will be a signal to start answering and all
contestants will raise their pens after hearing the buzzer.
There will be wandering officers to check the answers.
15. 1
Albert’s present age is two-fifth of
the age of his mother. After 8 years,
he will be one-half of the age of his
mother. How old is the mother at
present?
27. 2
If x is the average (arithmetic
mean) of m and 9, y is the average
of 2m and 15, and z is the average
of 3m and 18, what is the average
of x, y, and z in terms of m?
28. 3
If a runner jogs 3 miles west and then
jogs 8 miles north, how far is the
runner from her starting point if she
plans to run straight back?
29. Sam invest $6,000 in two bank accounts.
One of the accounts pays 8% interest
per year, and the other account pays
10% interest per year. If the total interest
earned on the investments is $560 after
one year, how much money was invested
in each account?
4
30. 5
Seven workers can make 210 pairs of
cup in 6 days. How many workers are
required to make 450 pairs of cup in 10
days?
