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Quadratic Equations and DI-Line - 23 Feb 2021

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Question 1

Direction: In the following question two equations are given in variables X and Y. You have to solve these equations and determine the relation between X and Y.

I. x 11 =

II. y= 625

Question 2

Direction: In the following question two equations are given in variables x and y. You have to solve these equations and determine the relation between x and y.

I. 2x+ 3x + 1 = 0

II. 6y+ y − 1 = 0

Question 3

Direction: In the following question two equations are given in variables X and Y. You have to solve these equations and determine the relation between X and Y.
I. x2 + 2x + 1 = 0
II. y2 = 9

Question 4

Direction: In the following question two equations are given in variables X and Y. You have to solve these equations and determine the relation between X and Y.
I. X– 5X + 6 = 0

II. Y2 = 4

Question 5

Direction: In the following question two equations are given in variables X and Y. You have to solve these equations and determine the relation between X and Y.
I. X– 15X + 56 = 0

II. Y– 6Y – 72 = 0

Question 6

Direction: Given line graph shows the sale of lotions by four different companies (Nivea, Ponds, Himalaya and Vaseline. in 5 different years (2014, 2015, 2016, 2017 and 2018). Study the data carefully and answer the following questions.

What is the percentage increase in the sales of lotion by Ponds in 2017 than in 2016?

Question 7

Direction: Given line graph shows the sale of lotions by four different companies (Nivea, Ponds, Himalaya and Vaseline. in 5 different years (2014, 2015, 2016, 2017 and 2018). Study the data carefully and answer the following questions.

Find the difference between the average sale of lotion by Nivea and Vaseline in all the years.

Question 8

Direction: Given line graph shows the sale of lotions by four different companies (Nivea, Ponds, Himalaya and Vaseline. in 5 different years (2014, 2015, 2016, 2017 and 2018). Study the data carefully and answer the following questions.

Sales of lotion by Himalaya in 2018 is approximately what percent of total sale by Ponds over all the years?

Question 9

Direction: Given line graph shows the sale of lotions by four different companies (Nivea, Ponds, Himalaya and Vaseline. in 5 different years (2014, 2015, 2016, 2017 and 2018). Study the data carefully and answer the following questions.

Find the ratio of sale of lotion by ponds in years 2017 and 2014 to that of sales by Nivea in year 2015 and 2018 together.

Question 10

Direction: Given line graph shows the sale of lotions by four different companies (Nivea, Ponds, Himalaya and Vaseline. in 5 different years (2014, 2015, 2016, 2017 and 2018). Study the data carefully and answer the following questions.

If the sale of lotion by Nivea increases by 20% in year 2019 than previous year, then find the new average sale of lotion by Nivea all over the years including 2019.
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