Test: Equal Groups - Class 4 MCQ

Doubling a number means multiplying it by 2. For 51, the calculation is 51 × 2 = 102. 

Required Pattern: 8000 ÷ 4 = 2000, 8000 ÷ 40 = 200, 8000 ÷ 400 = 20, 8000 ÷ 4000 = 2.

To calculate the total number of legs:

• Each goose has 4 legs.
• Each sheep also has 4 legs.

Now, compute the total legs:

• 25 geese x 4 legs = 100 legs
• 12 sheep x 4 legs = 48 legs

Adding them together:

• Total legs = 100 + 48 = 148 legs

The number 12 is a common multiple of both 3 and 4.

This is because 12 appears in the multiplication tables for both numbers: 3 × 4 = 12 and 4 × 3 = 12

To determine how many boxes are needed:

• There are 50 shuttlecocks in total.
• Each box holds 5 shuttlecocks.
• Divide 50 by 5 to find the number of boxes:
• 50 ÷ 5 = 10 boxes.

Therefore, you need 10 boxes to store all the shuttlecocks.

6 × 3 = 18, 6 × 5 = 30, but 20 is not in the multiplication table of 6

To find the number of cows, divide the total number of legs by the number of legs each cow has.

• Total legs: 88
• Legs per cow: 4

Calculation: 88 ÷ 4 = 22

Therefore, there are 22 cows.

Rows with even numbers produce even products. This is because multiplying an even number by any other number results in an even product.

Other options are incorrect because:

• Rows with odd numbers do not always produce odd products. Multiplying odd by even gives an even product.
• Not all rows have only odd products. Even numbers in the row ensure at least one even product.
• Rows with prime numbers do not always produce prime products. Multiplying a prime by a non-one integer results in a non-prime.

To find out how many people will be on 200 bikes if each bike has 2 people:

• Each bike carries 2 people.
• With 200 bikes, multiply the number of bikes by the number of people per bike:
• 200 bikes × 2 people/bike = 400 people.

Therefore, there will be a total of 400 people.

A multiple is defined as the result of multiplying a given number by an integer (1, 2, 3, etc.). For example, the multiples of 3 include 3, 6, 9, 12, and so on.

5 × 70 = 350, which is greater than 200.

When a whole number is doubled, its ones digit will be one of the following: 0, 2, 4, 6, or 8.

This is because doubling a number results in an even number.

The digit 9 can never appear in the ones place after doubling.

Equal groups mean each group has the same number of items.

Option A is correct because it has 4 baskets each with 3 apples.

Other options have different numbers of items in each group, so they are not equal.