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Ratios - Calculate Total from Item Ratio (Level 2)

This math topic focuses on calculating the total quantity from a given ratio of items or groups. Problems involve finding total numbers of pets, kids, or balls based on specific ratios, such as cats to dogs, boys to girls, or tennis balls to soccer balls. Each scenario provides one part of the ratio and asks the learner to use the given ratio to determine the total count of all items involved. The exercises are designed to help enhance understanding of ratios and proportional reasoning, which are integral components of the broader topic of rates and ratios.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

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Ratios - Calculate Total from Item Ratio

Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.


What is the total number of balls?

tennis balls : 15soccer balls : ?(tennis:soccer) = (5:4)\text{tennis balls : 15}\\\text{soccer balls : ?}\\\text{(tennis:soccer) = (5:4)}\\

Ratios - Calculate Total from Item Ratio Worksheet

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Math worksheet on 'Ratios - Calculate Total from Item Ratio (Level 2)'. Part of a broader unit on 'Rates and Ratios - Practice' Learn online: app.mobius.academy/math/units/rates_and_ratios_practice/
1
What is the total number of balls?
A LaTex expression showing \text{tennis balls : 9}\\\text{soccer balls : ?}\\\text{(tennis:soccer) = (3:4)}\\
a
23
b
5
c
7
d
21
2
A LaTex expression showing \text{boys : ?}\\\text{girls : 8}\\\text{(boys:girls) = (5:4)}\\
What is the total number of kids?
a
22
b
10
c
15
d
18
3
A LaTex expression showing \text{boys : 8}\\\text{girls : ?}\\\text{(boys:girls) = (4:3)}\\
What is the total number of kids?
a
18
b
14
c
15
d
22
4
A LaTex expression showing \text{boys : ?}\\\text{girls : 8}\\\text{(boys:girls) = (3:2)}\\
What is the total number of kids?
a
26
b
18
c
20
d
36
5
A LaTex expression showing \text{boys : 6}\\\text{girls : ?}\\\text{(boys:girls) = (2:5)}\\
What is the total number of kids?
a
5
b
13
c
19
d
21
6
A LaTex expression showing \text{boys : 15}\\\text{girls : ?}\\\text{(boys:girls) = (5:2)}\\
What is the total number of kids?
a
5
b
21
c
39
d
29
7
A LaTex expression showing \text{boys : 12}\\\text{girls : ?}\\\text{(boys:girls) = (4:5)}\\
What is the total number of kids?
a
23
b
27
c
11
d
43