Question

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Answer 1

Answer:

1. Let the original cost of the object be x.

Therefore, 12 % of x+x= 112x/100.

Since, 12% increased.cost of the object= ₹896

=>112x/100=₹856

=>x=₹896×100/112=₹8×100=₹800.

Therefore, original cost of the object was ₹800.

2. 729×125=9×9×9×5×5×5=3×3×3×3×3×3×5×5×5

$= {3}^{6} \times {5}^{3}.$

3. Length of wire= 176cm

Side of square=P/4=176/4=44 cm.

Radius of square=C/2pi=(176×7)/(2×22)=28 cm.

Area of square= a×a= 44×44= 1936 cm^2.

Area of circle=pi×r×r=22/7×28×28=112×22= 2464 cm^2.

Therefore, Area of circle is greater.

[You can also use the rule stating that all among all plane figures of same perimeters, circle has the greatest area]

Hope it helps (. ❛ ᴗ ❛.) Like and Follow too ( ꈍᴗꈍ)

Answer 2

Answer:

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