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India's population has been catching up with China, with 1132 million in mid-2007 and growing at 1.6% per year, versus China then with 1318 million and growing at only 06%. If these rates continue, when will India have more people than China?

  • calculus -

    solve for t
    1132 e^(.016t) = 1318 e^(.06t)

    That will give you the time when they are equal.
    You will have to use logs. (use ln)

  • Typo - calculus -

    Just noticed you have a typo, and I read it as .06

    does it say 0.6 % ?
    if so change my equation to

    1132 e^(.016t) = 1318 e^(.006t)

    You should get a t value of 15.2, add that to the year 2007 and draw your conclusion from that.

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