Chapter 3: Q. 7 (page 315)

In the following exercises, solve using the problem solving strategy for word problems. Remember to write a complete sentence to answer each question.
There are $16$ girls in a school club. The number of girls is four more than twice the number of boys. Find the number of boys.

Short Answer

Expert verified

The number of boys is $6$ .

Step by step solution

Step 1. Given Information

We are given that there are $16$ girls in a school club.

We have to find the number of boys.

Step 2. Forming the equation

Let the total number of choir members bex,

We know that,

The number of girls is equal to four more than twice the number of boys.

So, the equation will be,

$2 x + 4 = 16$

Step 3. Solving the equation

Subtracting $4$ from both sides, we get

$2 x + 4 = 16 2 x = 16 - 4 2 x = 12$

Dividing by $2$ , we get

$x = 6$

Hence, the number of boys is $6$ .

Step 4. Checking the solution

Putting the value of xin the equation, we get

$2 x + 4 = 16 2 (6) + 4 = 16 12 + 4 = 16 16 = 16 LHS = RHS$

Hence, the solution is correct.

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In the following exercises, solve using the problem solving strategy for word problems. Remember to write a complete sentence to answer each question.
There are $16$ girls in a school club. The number of girls is four more than twice the number of boys. Find the number of boys.

Short Answer

Step by step solution

Step 1. Given Information

Step 2. Forming the equation

Step 3. Solving the equation

Step 4. Checking the solution

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In the following exercises, solve using the problem solving strategy for word problems. Remember to write a complete sentence to answer each question.There are 16girls in a school club. The number of girls is four more than twice the number of boys. Find the number of boys.

Short Answer

Step by step solution

Step 1. Given Information

Step 2. Forming the equation

Step 3. Solving the equation

Step 4. Checking the solution

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Decision Maths

Logic and Functions

Geometry

Discrete Mathematics

Applied Mathematics

Mechanics Maths

Study anywhere. Anytime. Across all devices.

In the following exercises, solve using the problem solving strategy for word problems. Remember to write a complete sentence to answer each question.
There are $16$ girls in a school club. The number of girls is four more than twice the number of boys. Find the number of boys.