Bece Model Questions Vol1 2019 Mathematics Question 6

Practice essay / theory question 6 from the 2019 Bece Model Questions Vol1 Mathematics examination. This question covers Ratio and Proportion .

Bece Model Questions Vol1 2019 Mathematics Essay / Theory
Topic: Ratio and Proportion
Question 6 BECE_MODEL_QUESTIONS_VOL1 • 2019 • MATHEMATICS • essay

A farmer has 40 L of a fertilizer mixture that contains 15% nitrogen. He wishes to increase the nitrogen concentration to 20% by adding a second fertilizer that contains 35% nitrogen. After achieving the desired concentration, he will divide the mixture into two equal parts. One of the parts will then be diluted with water (0% nitrogen) so that its nitrogen concentration becomes 12%.

Question Parts

( a )
How many litres of the 35% nitrogen fertilizer must be added to obtain a 20% nitrogen mixture?
( b )
State the volume of each of the two equal parts after the addition.
( c )
How many litres of water must be added to one part so that its nitrogen concentration becomes 12%?
( d )
Give the final volume of the diluted part after the water has been added.

Detailed Solution & Marking Scheme

Get the step-by-step solution, key points required by examiners and detailed marking guidance through the Edcrib AI Tutor.

Reveal Answer

About This Question

This is Bece Model Questions Vol1 2019 Mathematics Question 6. It is one of the essay questions from the 2019 Bece Model Questions Vol1 Mathematics examination.

The question covers Ratio and Proportion .

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Chat with Support