The document Long Answers - Number System Class 9 Notes | EduRev is a part of the Class 9 Course Mathematics (Maths) Class 9.

All you need of Class 9 at this link: Class 9

**Q.1. Find six rational numbers between 1 and 2. Solution.** Let x = 1 and y = 2

⇒ y > x

Here n = 6

∴ The six rational numbers between 1 and 2 are: (x + d), (x + 2d), (x + 3d), (x + 4d), (x + 5d) and (x + 6d).**Q.2. Find five rational numbers between 0.6 and 0.8. Solution.** Let x = 0.6 and y = 0.8

⇒ y > x

Here, n = 5

∴

Now, the five rational numbers between 0.6 and 0.8 are: (x + d), (x + 2d), (x + 3d), (x + 4d), and (x + 5d).

Thus, the required five rational numbers between 0.6 and 0.8 are:

**Q.3. If ‘a’ and ‘b’ are rational numbers and ****, ****then find the value of ‘a’ and ‘b’.Solution.**

Now

⇒ a + b√8 = 17 +6√8

⇒ a = 17 and b = 6

Offer running on EduRev: __Apply code STAYHOME200__ to get INR 200 off on our premium plan EduRev Infinity!

46 videos|323 docs|108 tests