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Asked: October 29, 2020In: Class 10

Two customers Shyam and Ekta are visiting a particular shop in the same week (Tuesday to Saturday). Each is equally likely to visit the shop on any day as on another day. What is the probability that both will visit the shop on (i) the same day? (ii) consecutive days? (iii) different days?

Important NCERT Questions PROBABILITY NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 15.2 Page No:311 Questions No:1

Bhagyasri Singh

Asked: October 29, 2020In: Class 10

A bag contains 5 red balls and some blue balls. If the probability of drawing a blue ball is double that of a red ball, determine the number of blue balls in the bag.

NCERT Solutions for Class 10 Maths Chapter 15 Important NCERT Questions PROBABILITY NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 15.2 Page No:311 Questions No:3

Bhagyasri Singh

Asked: October 29, 2020In: Class 10

A box contains 12 balls out of which x are black. If one ball is drawn at random from the box, what is the probability that it will be a black ball? If 6 more black balls are put in the box, the probability of drawing a black ball is now double of what it was before. Find x.

NCERT Solutions for Class 10 Maths Chapter 15 Important NCERT Questions PROBABILITY NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 15.2 Page No:311 Questions No:4

Ekaksh Singh

Asked: October 28, 2020In: Class 10

What are trophic levels? Give an example of a food chain and state the different trophic levels in it.

NCERT Solution for Class 10 Science Chapter 15 Our Environment NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-260 Questions No-1

Ekaksh Singh

Asked: October 28, 2020In: Class 10

What is the role of decomposers in the ecosystem?

NCERT Solution for Class 10 Science Chapter 15 Our Environment NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-260 Questions No-2

Two customers Shyam and Ekta are visiting a particular shop in the same week (Tuesday to Saturday). Each is equally likely to visit the shop on any day as on another day. What is the probability that both will visit the shop on (i) the same day? (ii) consecutive days? (iii) different days?

A bag contains 5 red balls and some blue balls. If the probability of drawing a blue ball is double that of a red ball, determine the number of blue balls in the bag.

A box contains 12 balls out of which x are black. If one ball is drawn at random from the box, what is the probability that it will be a black ball? If 6 more black balls are put in the box, the probability of drawing a black ball is now double of what it was before. Find x.

What are trophic levels? Give an example of a food chain and state the different trophic levels in it.

What is the role of decomposers in the ecosystem?

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