Question

In an experiment, the rate of growth in the height of a particular plant was found to be 25% each year. If its height is 80 cm this year, find when it will reach the height of 155.25 cm​

Answer 1

Step-by-step explanation:

Let x be the year when height reaches 155.25,then height after x years,

155.25=80(1+25/100)^x

155.25/80=1.25^x

1.94=1.25^x

Take log on both sides

log 1.94=log 1.25^x

log1.94=xlog1.25

log1.94/log1.25=x

2.97years~x ans

Answer 2

Answer:

In an experiment the rate of growth in the height of a particular plant was found to be 25 % each year. if its height is 80 cm this year , find when it will reach the height of 156.25 cm .