Cbse Open Text Based Assessment Worksheet - Class Ix - Board Of High School And Intermediate Education - 2015-2016 Page 14
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2821. In a birthday party Aditi took 2 samosas, one pastry, one slice pizza and 200ml cola. If
she wants to burn extra calories by doing three physical activities; walking, jogging and
running. Establish a linear relationship between
(i) walking and jogging
(ii) jogging and running.
(3 marks)
22. Body mass Index (BMI) is a person’s weight in kilograms divided by the square of
height in meters. Taking the height as 190 cm, form a linear equation in two variables,
taking BMI as x and weight as y kg. Draw the graph also.
(3 marks)
23. Ajay and Aman are two friends. The height of Ajay is 160 cm where as the height of
Aman is 180 cm. The following graph represents the linear relationship between their
BMI and weight.
(3 marks)
State whether the following statements are True/False. Justify your answer.
(i) If the weight of Aman is 81 kg, then he is obese.
(ii) If Ajay weighs 70 kg, then he is overweight.
Prepared by: M. S. KumarSwamy, TGT(Maths)
Page - iii -
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