Testing our knowledge

What is the number below the fraction line called? 1/2 (number 2).

• The vinculum

• The numerator

• The denominator

• None of these

Answer explanation

The vinculum is the dividing line. The numerator is the number above the dividing line and none of these is a trick answer. Therefore the number below the dividing line is the denominator.

Which of the following shows a 24-hour clock time?

• 02:30a.m.

• 02:30 hours

• 02:30p.m.

• 02:30 noon

Answer explanation

24-hour time do not use a.m. or p.m.

They use the terminology hours.

Therefore 02:30 hours is the correct answer.

What is the probability that Tom will get a number more than 4 when he rolls the dice?

• 1/2

• 1/3

• 1/6

• 5/6

Answer explanation

As there are six sides to a dice. The chance that you will roll either a 1, 2, 3, 4, 5, or 6 is a 1/6 chance. Because Tom is trying to roll a number above 4, you add the probability of Tom rolling a 5 or a 6. This then increases his chance to 2/6. 2/6 simplified is 1/3. Therefore Tom has a 1/3 chance that he will roll a number above 4.

Round 123.7 to the closet whole number

• 126

• 124

• 123

• 125

Answer explanation

Any number .5 or above gets rounded up, therefore 123.7 is rounded up to 124

Which of the following has a value of 77?

• (10 x 7) + 7

• 10 x (7 + 7)

• 10 x 7

• 10 + (7 x 7)

Answer explanation

(10 x 7) + 7 = 70 + 7

= 77

Find the missing number in the given pattern:

92, 85, 78, ?, 64, 57 ...

• 71

• 70

• 73

• 72

Answer explanation

7 is being subtracted by the number before it. So, 78 - 7 = 71

Harry spends $3592 on clothes and $1217 on shoes. What is his total cost (rounded to the nearest thousands)?

• $4800

• $48000

• $5000

• $4900

Answer explanation

The amount spent on clothing = $3592

The amount spent on shoes = $1217

Total expense = clothing + shoes:

$3592 + $1217 = $4809

Rounding to the nearest thousands = $5000

A store owner sold 25 cartons of almonds and 36 cartons of cashews. Each carton is 10kg. What is the total weight of the products sold by the owner?

• 850kg

• 750kg

• 510kg

• 610kg

Answer explanation

Total weight of almonds:

25 x 10 = 250kg

Total weight of cashews:

36 x 10 = 360kg

Add the weight of the almonds and the cashews together:

250kg + 360Kg = 610kg

The total weight of the products is 610kg.

Each bag of potatoes weighs 4.99kg. If the total weights of a sack containing bags of potatoes is 59.88kg, how many bags are there in a sack?

• 10

• 11

• 12

• 13

Answer explanation

Each bag weighs 4.99kg

The total weight of bags in the sack is 59.88kg

To find the number of bags in the sack you divide 1 bag from the total weight of the combined bags:

59.88 / 4.99 = 12

Therefore, there are 12 bags in the sack.

Find the average of the multiples of 5 between 51 and 79.

• 66

• 64

• 65.5

• 65

Answer explanation

There are 5 multiples o 5 between 51 and 79. They are: 55, 60, 65, 70 and 75.

Average = sum of the data / total number of data points

Average = 55 + 60 + 65 + 70 + 75 / 5

Average = 325 / 5

Average = 65

Therefore the answer is 65