OC Mathematical Reasoning

Question 1

A rectangle has a length of 12 cm and a width of 7 cm. What is its perimeter?

Accepted Answer

38 cm

Answer

Perimeter = 2(l + w) = 2(12 + 7) = 38 cm.

Question 2

What is 35% of 80?

Accepted Answer

28

Answer

35% of 80 = 0.35 × 80 = 28.

Question 3

A train travels 240 miles in 4 hours. What is its average speed?

Accepted Answer

60 mph

Answer

Speed = Distance ÷ Time = 240 ÷ 4 = 60 mph.

Question 4

What is the next number in the sequence: 3, 6, 12, 24, ___?

Accepted Answer

48

Answer

Each term is doubled to get the next term, so 24 × 2 = 48.

Question 5

If 4x + 5 = 25, what is the value of x?

Accepted Answer

5

Answer

4x = 20, so x = 5.

OC - Opportunity Class Test Practice Test