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Geeta Kapoor

Asked: November 4, 2020In: Class 9

Activity : Ask all the students in your class to write a 3-digit number. Choose any student from the room at random. What is the probability that the number written by her/him is divisible by 3? Remember that a number is divisible by 3, if the sum of its digits is divisible by 3.

NCERT Solutions for Class 9 Maths Chapter 15 Important NCERT Questions Probability NCERT Books for Session 2022-2023 CBSE Board, UP Board and Other state Boards EXERCISE 15.1 Page No:285 Questions No:10

Geeta Kapoor

Asked: November 4, 2020In: Class 9

Eleven bags of wheat flour, each marked 5 kg, actually contained the following weights of flour (in kg): 4.97 5.05 5.08 5.03 5.00 5.06 5.08 4.98 5.04 5.07 5.00 Find the probability that any of these bags chosen at random contains more than 5 kg of flour.

NCERT Solutions for Class 9 Maths Chapter 15 Important NCERT Questions Probability NCERT Books for Session 2022-2023 CBSE Board, UP Board and Other state Boards EXERCISE 15.1 Page No:285 Questions No:11

Ishanvi Batra

Asked: October 30, 2020In: Class 9

Why are manure and fertilizers used in fields?

NCERT Solutions for Class 9 Science Chapter 15 Important NCERT Questions Improvements in Food Resources NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-214 Questions No-2

Ishanvi Batra

Asked: October 30, 2020In: Class 9

What are the advantages of inter-cropping and crop rotation?

NCERT Solutions for Class 9 Science Chapter 15 Important NCERT Questions Improvements in Food Resources NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-214 Questions No-3

Ishanvi Batra

Asked: October 30, 2020In: Class 9

What is genetic manipulation? How is it useful in agricultural practices?

NCERT Solutions for Class 9 Science Chapter 15 Important NCERT Questions Improvements in Food Resources NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-214 Questions No-4

Activity : Ask all the students in your class to write a 3-digit number. Choose any student from the room at random. What is the probability that the number written by her/him is divisible by 3? Remember that a number is divisible by 3, if the sum of its digits is divisible by 3.

Eleven bags of wheat flour, each marked 5 kg, actually contained the following weights of flour (in kg): 4.97 5.05 5.08 5.03 5.00 5.06 5.08 4.98 5.04 5.07 5.00 Find the probability that any of these bags chosen at random contains more than 5 kg of flour.

Why are manure and fertilizers used in fields?

What are the advantages of inter-cropping and crop rotation?

What is genetic manipulation? How is it useful in agricultural practices?

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