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The value of a residential flat …

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The value of a residential flat constructed at a cost of ₹112000 is depreciating at the rate 15% per annum. What will be its value 3 yr after construction.

Posted by Dev Raj 2 years, 4 months ago

CBSE > Class 07 > Mathematics

1 answers

Preeti Dabral 2 years, 4 months ago

Here, present value = ₹112000
rate of depreciation = 15% per annum and n = 3 yr.
$\therefore$ Value after 3 yr = 112000 $\left(1-\frac{15}{100}\right)^{3}$
= $\left[112000 \times\left(\frac{85}{100}\right)^{3}\right]$
= $\left(112000 \times \frac{17}{20} \times \frac{17}{20} \times \frac{17}{20}\right)$
= (14 $\times$ 17 $\times$ 17 $\times$ 17) = ₹68782

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