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The given table shows the crop production of a State in the year 2008 and 2009. Observe the table given below and answer the given questions. - Mathematics

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प्रश्न

The given table shows the crop production of a State in the year 2008 and 2009. Observe the table given below and answer the given questions.

Crop 2008 Harvest
(Hectare)
Increase/Decrease
(Hectare) in 2009
Bajra 1.4 × 103 – 100
Jowar 1.7 × 106 – 440,000
Rice 3.7 × 103 – 100
Wheat 5.1 × 105 + 190,000
  1. For which crop(s) did the production decrease?
  2. Write the production of all the crops in 2009 in their standard form.
  3. Assuming the same decrease in rice production each year as in 2009, how many acres will be harvested in 2015? Write in standard form.
योग
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उत्तर

a. The production decreased for Bajra, Jowar and Rice.

b. Production of Bajra in 2009

= 1.4 × 103 – 100

= 1400 – 100

= 1300

= 1.3 × 103 hectares

Production of Jowar in 2009

= 1.7 × 106 – 440,000

= 1,700,000 – 440,000

= 1,260,000

= 1.26 × 106 hectares

Production of Rice in 2009

= 3.7 × 103 – 100

= 3700 – 100

= 3600

= 3.6 × 103 hectares

Production of Wheat in 2009

= 5.1 × 105 + 190,000

= 510,000 + 190,000

= 700,000

= 7 × 105 hectares

c. Production of Rice in 2015

= (3600 – 600) hectares

= 3000 hectares

= 3.0 × 103 hectares

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अध्याय 8: Exponents and Powers - Exercise [पृष्ठ २६५]

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एनसीईआरटी एक्झांप्लर Mathematics [English] Class 8
अध्याय 8 Exponents and Powers
Exercise | Q 146. | पृष्ठ २६५

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