Explanation:
Let’s solve each problem one by one using ratios.
1.
Tomatoes to red apples = 2 : 5
That means for every 2 tomatoes, there are 5 red apples.
We’re told there are 20 tomatoes.
How many “groups” of 2 tomatoes are in 20?
→ 20 ÷ 2 = 10 groups.
Each group has 5 red apples, so:
→ 10 × 5 =
50 red apples.
2.
Berries to oranges = 10 : 1
For every 1 orange, there are 10 berries.
There are 25 oranges.
So berries = 25 × 10 =
250 berries.
3.
Potatoes to turnips = 1 : 1
This means they are equal in number.
If there are 473 potatoes, then there are also
473 turnips.
4.
Pears to green apples = 1 : 3
Wait — the ratio says *pears to green apples* is 1:3.
So for every 1 pear, there are 3 green apples.
We’re given 150 green apples.
Let the number of pears be *x*. Then:
x : 150 = 1 : 3
So x / 150 = 1 / 3
Multiply both sides by 150:
x = 150 ÷ 3 =
50 pears.
5.
Bananas to melons = 30 : 1
For every 30 bananas, there is 1 melon.
There are 300 bananas.
How many groups of 30 bananas?
→ 300 ÷ 30 = 10 groups.
So melons = 10 × 1 =
10 melons.
6.
Blueberries to strawberries = 1 : 7
For every 1 blueberry, there are 7 strawberries.
There are 210 strawberries.
Let blueberries = *x*. Then:
x / 210 = 1 / 7
So x = 210 ÷ 7 =
30 blueberries.
Now double-check each:
1. 20 tomatoes → 10×2, so 10×5 = 50 ✔️
2. 25 oranges ×10 = 250 ✔️
3. 1:1 → 473 = 473 ✔️
4. 150 green apples → 150/3 = 50 pears ✔️
5. 300 ÷ 30 = 10 melons ✔️
6. 210 ÷ 7 = 30 blueberries ✔️
All correct.
Final Answer:
1. 50
2. 250
3. 473
4. 50
5. 10
6. 30
Parent Tip: Review the logic above to help your child master the concept of ratio worksheet 5th grade.