real-life applications of arithmetic sequences

A car travels 300 meters the first minute, 420 meters the next minute, 540 meters the third minute. What was the distance the car travels in fourth minute?

• 660 meters

• 680 meters

• 700 meters

• 720 meters

An auditorium has 20 seats on the first row, 24 seats on the second row, 28 seats on the third row. How many seats are there in the 4th row?

• 30 seats

• 32 seats

• 34 seats

• 36 seats

There are 54 students in Grade 7, 56 in Grade 8 and 58 students in Grade 9. How many students are there in Grade 10? 

• 62 students

• 61 students

• 60 students

• 59 students

There are 125 passengers in the first carriage, 150 passengers in the second carriage and 175 passengers in the third carriage. How many passengers are there in the fourth carriage?

• 180 passengers

• 200 passengers

• 220 passengers

• 225 passengers

A company increases the price of a product by Php5 every month. If during the first month the price of the product is Php50, what will be the price after 5 months?

• Php60

• Php65

• Php68

• Php70