en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular Word Problems >

30percentage of the class are 10 yars old and the other 21 children are 11 year old how many children were the class

Solution

30 p erce n t a g e o f t h e c l a ss a re 10 y a rs o l d an d t h e o t h er 21 c hi l d re n a re 11 ye a r o l d h o w man y c hi l d re n w ere t h e c l a ss

Solution

Percentage : \frac{1}{3}

Class^{'} s age is : y

Solution steps

Translate the problem into an equation:

30 x = 10

Solve for

x, 30 x = 10 : x = \frac{1}{3}

Find age

Percentage : \frac{1}{3}

Class^{'} s age is : y

Popular Examples

The radius of a circle is 4.5 cm. Find the circumference to the nearest tenth.The circumference of a circle is 2𝜋 centimeters. What is the area?one number is six more than the second number. five times the first is 5 less than 6 times the second. find the numbers.a number x divide by 6 is at most-30 A restaurant offers a 25% discount on all meals. If a meal costs 40 after the discount, what was its original price?