Decimal Number Word Problems

Solutions

1A water pitcher weighs 0.64 kg when empty and 1.728 kg when filled with water. How much does the water weigh?

2A cyclist has travelled 145.8 km in the first stage of a race, 136.65 km in the second stage and 162.62 km in the third.

How many kilometers must the cyclist still complete if the entire race is 1000 km in length?

3In a well filled with water, 184.5 litres are removed followed by 128.75 litres and finally 84.5 litres. After these withdrawls, there are 160 litres in the well. How much water did the well originally have?

4There are 240 boxes with 25 bags of coffee each. If each bag weighs 0.62 kg, what is the total weight of all the coffee?

5Knowing that 2.077 m³ air weighs 2.7 kg, calculate how much 1 m³ of air weighs.

6Eva is on a diet which states that she cannot consume more than 600 calories in one meal.

Yesterday she had lunch: 125 g of bread, 140 g of asparagus, 45 g of cheese and an apple of 130 g.

If 1 g of bread has 3.3 calories, 1 g of asparagus, 0.32, 1 g of cheese, 1.2, and 1 g of an apple 0.52.

Did Eva follow her diet?


1

A water pitcher weighs 0.64 kg when empty and 1.728 kg when filled with water. How much does the water weigh?

Decimal Number Solutions


2

A cyclist has travelled 145.8 km in the first stage of a race, 136.65 km in the second stage and 162.62 km in the third.

How many kilometers must the cyclist still complete if the entire race is 1,000 km in length?

Decimal Number Solutions          diferencia


3

In a well filled with water, 184.5 litres are removed followed by 128.75 litres and finally 84.5 litres. After these withdrawls, there are 160 litres in the well. How much water did the well originally have?

184.5 + 128.75 + 84.5 + 160 = 557.75 l


4

There are 240 boxes with 25 bags of coffee each. If each bag weighs 0.62 kg, what is the total weight of all the coffee?

25 · 0.62 = 15.5 kg

15.5 · 240 = 3,720 kg of coffee


5

Knowing that 2.077 m³ air weighs 2.7 kg, calculate how much 1 m³ of air weighs.

Decimal Number Solutions



6

Eva is on a diet which states that she cannot consume more than 600 calories in one meal.

Yesterday she had lunch: 125 g of bread, 140 g of asparagus, 45 g of cheese and an apple of 130 g.

If 1 g of bread has 3.3 calories, 1 g of asparagus, 0.32, 1 g of cheese, 1.2, and 1 g of an apple 0.52.

Did Eva follow her diet?

125 · 3.3 + 140 · 0.32 + 45 · 1.2 + 130 · 0.52 =

= 412.5 + 44.8 + 54 + 67.6 = 578.9 calories

578.9 < 600. Yes.