The sum of the digits of a three-digit number is six. If the tens digit is thrice the hundreds digit and the units digit is one more than the hundreds digit, what is the three-digit number?

(a)  

Mark is 24 years older than his son. In two years, Mark's age will be twice his son. The present age of his son is (a)   years old.

The perimeter of a triangle is 26 cm. If the triangle is isosceles and the length of the longest side is 2 more than the length of the other two equal sides, what is the length of the longest side?

(a)  

Ayan has 850 pesos which consists of 20-peso bill, 50-peso bill, and 100-peso bill. If the number of his 20-peso bill is 2 more than twice his 100-peso bill, and the number of his 50-peso bill is 1 more than his 100-peso bill, how many 100-peso bill does he have?

(a)  

Ram is starting his lemonade business. He is selling only medium and large-sized lemonade for 20 pesos and 30 pesos, respectively. If the number of large-sized lemonade sold is 10 more than the number of medium-sized lemonade sold and his total sales for the day is 1050 pesos, how many medium-sized lemonade was sold?

(a)  

Selyna needs money and broke her piggy bank. When she counted the number of coins, she realized that she only have 5-peso and 10-peso coins. The number of 5-peso coins is 6 more than 4 times the number of 10-peso coins. If the total value of her coins is 600 pesos, how many 5-peso coins does she have?

(a)  

Jeff is invested a total amount of 20,000 pesos in Company A and Company B which offers 6% and 10% annual interest, respectively. After 1 year, Jeff has earned 1,760 pesos as interest for his investment. If the amount invested in Company B is 2,000 pesos more than twice the investment in Company A, how much did he invest in Company A?

(a)  

A 50 mL solution which is 30% alcohol is mixed with 30 mL of pure water. What is the percent of alcohol in the new solution? (Do not include the percent symbol)

(a)  

Urdaneta and Clark are 90 kilometers away. Rhoda left Urdaneta going to Clark and Glai left Clark going to Urdaneta at the same time. If Rhoda is travelling at a constant speed of 60 kph while Glai is travelling at a constant speed of 90 kph, how long (in minutes) would it take them to come across each other?

(a)