Saturday Math Class Exercise 2

Question 1

If the outer radius of a metal pipe is 2.84 and the inner radius is 1.94 what is the thickness?

Accepted Answer

0.90

Question 2

Pete earns 20.56 then 32.90 then 20.78 he spends 1/2 that he earned how much does he have left?

Accepted Answer

$37.12

Question 3

The pop of a town was 54000 but it has since increased by two-thirds, what is the new pop?

Accepted Answer

90000

Question 4

Subtracting 1 from which digit in the number 12,345 will decrease the value by 1,000

Accepted Answer

2

Question 5

if the price drops from 200 to 160 the old price is what percent of the new price?

Accepted Answer

125%

Question 6

80 is what percentage of 20

Accepted Answer

400%

Question 7

What percentage of 10 is 1?

Accepted Answer

10%

Question 8

The Colts won 10 out of 12 games. Round to the nearest whole percent how many games they won?

Accepted Answer

83

Question 9

What is the total cost of 3 and 1/2 lbs of meat at 1.70 per lb and 20 lemons at 2.70 per dozen?

Accepted Answer

$10.45

Question 10

A gas tank is 1/8 full, then 14 gal is added, what is the tanks capacity in gallons?

Accepted Answer

16

Question 11

If each bag of tokens weighs 5 and 3/4 pounds. how many pounds do 3 bags weight?

Accepted Answer

17 and 1/4

Question 12

Pete saved $4.56 and $3.82 and $5.06 how much did Pete save altogether?

Accepted Answer

$13.44

Question 13

What is the sum of the product of 2 and 3 and the product of 3 and 4

Accepted Answer

18

Question 14

A radio costs 72 at which price must he sell it if he is to make a profit of 20% of the cost?

Accepted Answer

$90

Question 15

If 75% of 240 cars in a parking lot are sedans, how many of the cars are sedans?

Accepted Answer

180

Question 16

One rod measures 3 and 5/16 long and another is 2 and 3/4 long what is the total length of both

Accepted Answer

6 and 1/16

Question 17

What number is 250% of 12?

Accepted Answer

30

Question 18

Adding 1 to each digit of the number 222,222 will increase the value by how much?

Accepted Answer

111,111

Question 19

If the price of an item increases from 5 to 8 the old price is what percentage of the new price

Accepted Answer

62.5%

Questions 19