Question

A some of money becomes 3 times in 12 years . in how many years will it become at the same rate of SI. plz I giving this answer 100 pts . Plz take it and answer my question if anyone give wrong answer he /she will be reported​

Answer 1

$\huge\bigstar \: \huge\mathrm { \underline{ \purple{correct \: question} }} \: \bigstar \: </p><p> \:$

• A some of money becomes 3 times in 12 years . In how many years will it become 5 times at the same rate of SI.

$\huge\bigstar \: \huge\mathrm { \underline{ \purple{solution} }} \: \bigstar \: </p><p> \:$

➠ P becomes 3 times in 12yrs.

P ➨ 3P in 12yrs.

2P = PRT/100

Here ,

• T = 12yrs.
• We have to find R.

➛ 2 = R(12)/100

➛ R = 200/12

➥ R = 50/3

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➠ In T yrs it becomes 5times.

P ➨ 5P in T yrs.

➛ 4P = PRT/100

➛ 4 = (50/3)T / 100

➛ 400 = 50T/3

➛ T = 1200/50

➥ T = 24yrs.

$\rm \therefore \: in \: \red{ 24yrs }\: it \: will \: become \: 5times \: at \: same \: simple \: intreast.$