Question 146iiThe 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 HarvestHectare Increase- DecreaseHectare in 2009- Bajra 1-4 - 103 -100- Jowar 1-7 - 106 -440000- Rice 3-7 - 103 -100- Wheat 5-1 - 105 -190000- -Write the production of all the crops in 2009 in their standard form-

The production of all crop in 2009 Bajra = 1.4 × 10^3 0.1 × 10^3 = 1.3 × 10^3 Jowar = 1.7 × 10^6 44 × 10^4 = 1.7 × 10^6 0.44 × 10^6 = 1.26 × 10^6 Rice ...

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Standard VII

Mathematics

Law of multiplying Powers with the same exponents

Question 146i...

Question

Question 146(ii)

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.
$\begin{matrix} C r o p & 2008 H a r v e s t (H e c t a r e) & I n c r e a s e / D e c r e a s e (H e c t a r e) i n 2009 B a j r a & 1.4 \times 10^{3} & - 100 J o w a r & 1.7 \times 10^{6} & - 440000 R i c e & 3.7 \times 10^{3} & - 100 W h e a t & 5.1 \times 10^{5} & + 190000 \end{matrix}$
Write the production of all the crops in 2009 in their standard form.

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Solution

The production of all crop in 2009
Bajra $= 1.4 \times 10^{3} - 0.1 \times 10^{3} = 1.3 \times 10^{3} J o w a r = 1.7 \times 10^{6} - 44 \times 10^{4} = 1.7 \times 10^{6} - 0.44 \times 10^{6} = 1.26 \times 10^{6} R i c e = 3.7 \times 10^{3} - 0.1 \times 10^{3} = 3.6 \times 10^{3} W h e a t = 5.1 \times 10^{5} + 19 \times 10^{4} = 5.1 \times 10^{5} + 1.9 \times 10^{5} = 7 \times 10^{5}$

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Question 146(iii)

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.
$\begin{matrix} C r o p & 2008 H a r v e s t (H e c t a r e) & I n c r e a s e / D e c r e a s e (H e c t a r e) i n 2009 B a j r a & 1.4 \times 10^{3} & - 100 l o w a r & 1.7 \times 10^{6} & - 440000 R i c e & 3.7 \times 10^{3} & - 100 W h e a t & 5.1 \times 10^{5} & + 190000 \end{matrix}$
Assuming the same decrease in rice production each year as in 2009, how many acres will be harvested in 2015? Write in standard form.

Question 146(i)

Question 146(ii)

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.
$\begin{matrix} C r o p & 2008 H a r v e s t (H e c t a r e) & I n c r e a s e / D e c r e a s e (H e c t a r e) i n 2009 B a j r a & 1.4 \times 10^{3} & - 100 J o w a r & 1.7 \times 10^{6} & - 440000 R i c e & 3.7 \times 10^{3} & - 100 W h e a t & 5.1 \times 10^{5} & + 190000 \end{matrix}$
Write the production of all the crops in 2009 in their standard form.

Question 146(i)

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.

$\begin{matrix} Crop & 2008 Harvest (Hectare) & Increase/ Decrease (Hectare) in 2009 Bajra & 1.4 \times 10^{3} & - 100 Jowar & 1.7 \times 10^{6} & - 440000 Rice & 3.7 \times 10^{3} & - 100 Wheat & 5.1 \times 10^{5} & + 190000 \end{matrix}$
Assuming the same decrease in rice production each year as in 2009, how many hectares will be harvested in 2015? Write in standard form.

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The production of all crop in 2009 Bajra =1.4×103−0.1×103=1.3×103Jowar=1.7×106−44×104=1.7×106−0.44×106=1.26×106Rice=3.7×103−0.1×103=3.6×103Wheat=5.1×105+19×104=5.1×105+1.9×105=7×105