00:00The graph in the image shows the increase in the height of plants A and B over the years.
00:05Let's find out in which year the two plants will be of equal height.
00:10Now, my friends, our years are numbered 1, 2, and so on.
00:12What is plant B, guys?
00:14It grows 1 meter a year.
00:16But what exactly is plant A, folks?
00:19If its height starts at 2 meters, how much will it be in 2 years?
00:24It's getting 3 units longer, folks.
00:25Now, when it comes to writing these down, I'm referring to plant A.
00:35How tall is he, guys?
00:38What does it even mean to learn chart reading in two years, guys?
00:46We were growing closer to each other.
00:47One meter, that is.
00:51Plant B is...
00:56Height
00:58In 1 year
01:01It grows 1 meter taller.
01:03The increase, that is.
01:06Okay guys, when I say plus 1, I'm not adding this up, guys.
01:10It grows an extra meter, plus 1.
01:12Change.
01:12This one grows an extra meter.
01:14If it grows 1 meter in 2 years, then this will also grow 1 meter in 1 year.
01:19How much longer will it take in the next year?
01:22But before we say that, what are we going to say to our friends?
01:25Plant A
01:29Height
01:33Per year
01:34How long will it take, guys?
01:36If it grows 1 meter in 2 years
01:39In one year, isn't it 1/2 meter per year?
01:43We'll say it grows by 1/2 meter.
01:46So, if plant A grows 1/2 meter and plant B grows 1 meter per year, then plant B grows 1 meter per year.
01:52In this case, T is the year
01:58Plant B
02:03Let it extend T meters.
02:07In this case, as it came in year T.
02:11Plant A
02:14How long will it take, guys?
02:17If it increases by 1/2 meters, multiplying by T gives T/2, but since it starts from 2, it becomes 2 plus T/2.
02:21It extends to 2.
02:24Let's see now.
02:25Why is T equal to 2 plus T divided by 2?
02:29Their sizes will be equal, right guys?
02:32When we solve this equation, we get T divided by 2, which we can move to the other side.
02:35T minus T divided by 2 equals 2.
02:372 times T
02:382 T
02:39Minus T
02:40T divided by 2 equals 2
02:42When we perform cross-multiplication
02:44We set our T here as 4.
02:46So we're saying in 4 years.
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