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Bar Graphs — Maths STD 7 — Question

Maharashtra BoardEnglish MediumSTD 7MathsBar Graphs5 Marks
Question
Study the double bar graph given below and answer the questions that follow:
  1. What has been compared in the given double bar graph?
  2. What is the ratio of minimum temperatures in the year 2015 to the year 2016 in the month of November?
  3. Name the months in which the minimum temperature in 2015 was greater than that in 2016?
  4. Find the average minimum temperature for the year 2016 for the given four months.
  5. In which month is the variation in two temperatures maximum?
✓

Answer

  1. Minimum temperature for the monts of Nov, Dec, Jan and Feb of 2015 and 2016 have been compared.
  2. Ratio of minimum temperature in 2015 to minimum temperature in 2016 during the month of Nov. $=\frac{18}{14}=\frac{9}{7}$
$\Rightarrow\text{Ratio}=9:7$
  1. In November and February the minimum temperature in 2015 was greater than that of 2016.
  2. Average minimum temperature for the year 2016 $=\frac{14+13+8+9}{4}=\frac{44}{4}=11^\circ\text{C}$
  3. November variation = 18 - 14 = 4
December variation = 13 - 11 = 2
January variation = 8 - 5 = 3
February variation = 11 - 9 = 2
During November the variation in two temperatures is maximum.

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