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9 Ratio and Proportion

Learning Objectives

After studying this chapter, students will be able to... Scan to learn
 understand the concept of ratio and equivalent ratio
 simplify the ratios into their simplest form
 compare ratios and learn how to divide the given quantity in a given ratio
 apply the concept of ratio in solving real life problems
 understand the concept of proportion and determine the unknown term in a proportion

GET READY!

Rohit and Shreya are siblings, they are comparing their heights.

You can compare your heights
by finding the difference,
Hey, look! I am as 140 cm – 130 cm = 10 cm.
taller than you. My So, you are 10 cm shorter than
height is 140 cm. Shreya.

But, I am 130 cm high.
We can also How did you compare
compare our our heights?
heights using ratio.

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