NCAE Review: Mathematical Ability 2

It requires 5 hours for two men to finish a job. Then in 3 hours they can do?

• 3/5
• 2/3
• 2/5
• 4/5

The sum of the perimeters of two squares is 100 cm. If the perimeter of one square is four times the perimeter of the other square, what are the measures of the sides of the two squares?

• 3 cm and 12 cm
• 5 cm and 20 cm
• 6 cm and 24 cm
• 4 cm and 16 cm

What is the answer of 3(4 + 5 x 8 / 2 - 10)?

• 16
• 78
• 42
• 10

The difference between 35 and 15 is multiplied by 1000. What is the product?

• 20,000
• 20
• 200
• 2,000

If z = 3/8 - 9/24 + 15/40, then (z-1)³ is _____.

• 125/512
• -125/512
• -5/8
• 5/8

Find 3 numbers that have sum of 144 and which are in the ratio 2:4:6.

• 30, 40, 74
• 24, 48, 72
• 28, 48, 68
• 32, 42, 70

Water freezes at 0° Celsius and 32° Farenheight. Water boils at 100°C and at 212°F. What Celsius temperature cprresponds to -40°F?

• -252°C
• -40°C
• 172°C
• 252°C

A cube has a volume of 512 cm³. What are its dimensions?

• 8 cm x 8 cm x 1 cm
• 8 cm x 8 cm x 8 cm
• 9 cm x 9 cm x 1 cm
• 9 cm x 9 cm x 9 cm

One number exceeds another by 8, and the sum of the smaller and twice the larger is 40. Find the product of the two mu,bers.

• 16
• 32
• 128
• 8

What is the mean of the following: 10, 15, 18, 24, 28, 30, 35.

• -22.86
• 21.85
• -21.85
• 22.86