This Math quiz is called 'Business Math 07 - Hair Pulling Word Problems' and it has been written by teachers to help you if you are studying the subject at middle school. Playing educational quizzes is a fabulous way to learn if you are in the 6th, 7th or 8th grade - aged 11 to 14.
It costs only $12.50 per month to play this quiz and over 3,500 others that help you with your school work. You can subscribe on the page at Join Us
Do you enjoy word problems? Most people really make them far more difficult than they need to be because they don’t break the problem down into smaller, more manageable sections. They also don’t recognize that all of the facts and figures sometimes given in a word problem are not necessarily needed in order to find the solution. In high school and advance math classes such as trigonometry, calculus and physics, word problems are often very much more the norm rather than the exception so keeping the mind alert is key to being able to solve those hair pulling problems.
To find the answer you need to work backwards, changing your math calculations as follows:
Start with multiplying 351 by 8
351 x 8 = 2,808
2,808 is then divided by .90
2,808 ÷ .90 = 3,120
3,120 is then divided by 52
3,120 ÷ 52 = 60
Test it out now
60 x 52 = 3,120
3,120 x .90 = 2,808
2,808 ÷ 8 = 351 - It works out!
Solution: Penny has 60 Barbie dolls
Answer (d) is the correct answer