Question

A mango tree of height 125cm was planted 3 years ago. If it increases at the rate of 20% p.A, what is its present height?

Answer 1

Step-by-step explanation:

$Present \: Height \: of \: tree \\ = 125 \times (1 + \frac{20}{100} )^{3} \\ \\ = 125 \times (1 + 0.20) ^{3} \\ \\ = 125 \times (1.20) ^{3} \\ \\ = 125 \times 1.728 \\ \\ = 216 \: cm \\ \\ thus \: \\ \\ \bold{\orange{ \boxed{Present \: Height\: of \: tree = 216 \: cm}}}$

Answer 2

Given ,

Hᴇɪɢʜᴛ=125ᴄᴍ

Rᴀᴛᴇ=20%ᴘᴀ

n=3 years

_____________________________

Present height = (125×(1+20/100)cm

= 125 × 6/5 × 6/5 × 6/5

= 216 cm

Hope it helps u ✍︎☝︎