Скачать или смотреть Lecture 21: "Unit 1 - Review Exercise-Question 6,7,8,9-Solved " - 9th Class Math (New Book PTB 2025)

Welcome back to Smart Learning Hub!

This video, titled "Lecture 21: 'Unit 1 - Review Exercise-Question 6,7,8,9-Solved' - 9th Class Math (New Book PTB 2025)," is a math tutorial that covers several review exercise questions from a 9th-grade textbook.

The key topics explained in the video are:

Finding Rational Numbers: The video demonstrates how to find two rational numbers between 4 and 5 by calculating their average [00:23]. The resulting numbers are 9/2 and 17/4.

Simplifying Expressions: The video shows how to simplify complex expressions involving roots and powers by converting the root to a fractional exponent and applying the rules of exponents [03:24].

Solving Word Problems: The video solves two word problems:

Consecutive Odd Integers: It finds three consecutive odd integers that sum up to 51, which are 15, 17, and 19 [09:10].

Ball Distribution: It finds the number of balls in two buckets, where one has 28 more than the other, from a total of 96 balls [12:29]. The solution is 34 balls and 62 balls.

Calculating Simple Profit: The video calculates the total amount a person had after investing 350,000 rupees for seven years at a simple interest rate that changes after two years [16:25]. The final total amount is 540,750 rupees.

If you found this video helpful, please hit the LIKE button, SHARE it with your friends, and SUBSCRIBE to our channel for more expert tutorials on STEM subjects.

Join our community:

Facebook: @smartlearninghub

For Online Tutoring Inquiries: [email protected]

#smartlearninghub #9thclassmath #ptb #newbookmath #mathstutorial #realnumbers #lecture3
#9thclassmath #ptbnewbook #realnumbers #mathsplaylist #properties #newbook #smartlearninghub #punjabtextbook #punjabtextbookboard #9thclass #Fsc #9thclassnewbook #unit1 #chapter1 #exercise1.1 #math1.1newnook #math1.1 #math1.2 #math1.3 #math1.3newbook #reviewexercisenewbook #9thclassmath