Question

Lucy correctly answered 70% of the questions on her science homework.she counted 14 correct answers on her paper .if each question is of a equal value ,how many questions did lucy have on her science homework

Answer 1

Lucy has 20 questions in her science home work

Solution:

Given that,

Lucy correctly answered 70% of the questions on her science homework

She counted 14 correct answers on her paper

To find: Number of questions in her science home work

Let "x" be the number of questions in her science home work

From given we can say,

Lucy correctly answered 70% of questions

She counted 14 correct answers

70 % of total questions = 14 correct answers

70 % of x = 14

$70 \% \times x = 14\\\\\frac{70}{100} \times x = 14\\\\0.70x = 14\\\\x = \frac{14}{0.70}\\\\x = 20$

Thus Lucy has 20 questions in her science home work