Quiz Bee 789 (RED)

Find the centroid of the triangle whose vertices are the points A (8 , 4) B (1 , 3) and C (3 , -1).

• (8,4)

• (1,3)

• (2,4)

• (4,2)

Sum of the areas of two squares is 468 m². If the difference of their perimeters is 24 m, determine the sides of the two squares.

• 8 and 12

• 12 and 18

• 8 and 24

• 16 and 24

In triangle PQR right-angled at Q , PQ = 3 cm and PR = 6 cm. Determine ∠QPR.

• 30

• 45

• 60

• 75

What value of x + x(x^x) when x = 2

• 10

• 16

• 18

• 36

Mr. Jones sold two pipes at $1.20 each. Based on the cost, his profit one was 20% and his loss on the other was 20%. On the sale of the pipes, he:

• broke even

• gained 4 cents

• lost 10 cents

• gained 10 cents

The distance light travels in one year is approximately 5,870,000,000,000 miles. The distance light travels in 100 years is:

• 587 × 10⁸ miles

• 587 × 10¹⁰ miles

• 587 × 10^-10 miles

• 587 × 10¹² miles

A man has $ 10,000 to invest. He invests $ 4000 at 5 % and $ 3500 at 4 %. In order to have a yearly income of $ 500, he must invest the remainder at:

• 6.1 %

• 6.2 %

• 6.3 %

• 6.4 %

• 15

• 20

• 30

• 32

• 18750

• 11250

• 750

• 450

• 10

• 26

• 30

• 60