Amount after 5 years = sh. 3P
3P = P(1 + r/100)^5
3 = (1 + r/100)^5
Taking the 5th root of both sides
1.25 =1 +r/100
25% = r
joseph rimiru answered the question on November 16, 2017 at 19:09
- A businessman wants to have sh. 40000 in 8 years. How much money must he invest now if the rate of interest is 7.5% p.a....(Solved)
A businessman wants to have sh. 40000 in 8 years. How much money must he invest now if the rate of interest is 7.5% p.a. compound interest?
Date posted: November 16, 2017. Answers (1)
- Find the accumulated amount if sh. 40000 is deposited for 4 ½ years at 10% p.a. compound interest.(Solved)
Find the accumulated amount if sh. 40000 is deposited for 4 ½ years at 10% p.a. compound interest.
Date posted: November 16, 2017. Answers (1)
- What would sh. 30000 amount to after three years at 16% p.a. compounded quarterly?(Solved)
What would sh. 30000 amount to after three years at 16% p.a. compounded quarterly?
Date posted: November 16, 2017. Answers (1)
- The equation of a straight line L1 is given by 2y + 8x - 10 = 0. Another line L2 cuts L1 at right angles...(Solved)
The equation of a straight line L1 is given by 2y + 8x - 10 = 0. Another line L2 cuts L1 at right angles such that the point of intersection of the two lines has coordinates (-3,k).
(a) Find the value of k
(b) Hence find the equation of L2
Date posted: November 16, 2017. Answers (1)
- Find the amount at the end of the fourth year if sh. 60000 is deposited at 15% p.a. compound interest.(Solved)
Find the amount at the end of the fourth year if sh. 60000 is deposited at 15% p.a. compound interest.
Date posted: November 16, 2017. Answers (1)
- Find the amount after 2 years if sh. 10000 is invested at 20% p.a. compound interest.(Solved)
Find the amount after 2 years if sh. 10000 is invested at 20% p.a. compound interest.
Date posted: November 16, 2017. Answers (1)
- John invested a certain amount of cash in a bank which paid 12% p.a. simple interest. After 10 years, his total saving were sh. 10000....(Solved)
John invested a certain amount of cash in a bank which paid 12% p.a. simple interest. After 10 years, his total saving were sh. 10000. Determine the amount of money he invested initially.
Date posted: November 16, 2017. Answers (1)
- Calculate the rate of interest if sh. 9000 earns sh. 1000 after sh. 9000 earns sh. 1000 after 1 ½ years.(Solved)
Calculate the rate of interest if sh. 9000 earns sh. 1000 after sh. 9000 earns sh. 1000 after 1 ½ years.
Date posted: November 16, 2017. Answers (1)
- Calculate the simple interest and the amount on sh. 8000 for 1 ½ years at 14% per annum.(Solved)
Calculate the simple interest and the amount on sh. 8000 for 1 ½ years at 14% per annum.
Date posted: November 16, 2017. Answers (1)
- Find the simple interest earned on sh. 1000 at 12% per annum for
a. 1 year
b. 2 years
c. 3 years
(Solved)
Find the simple interest earned on sh. 1000 at 12% per annum for
a. 1 year
b. 2 years
c. 3 years
Date posted: November 16, 2017. Answers (1)
- Solve for a in log (3a + 4) – log (3-a) =1(Solved)
Solve for a in log (3a + 4) – log (3-a) =1
Date posted: November 16, 2017. Answers (1)
- Solve the following Log x = 3 log 2(Solved)
Solve the following
Log x = 3 log 2
Date posted: November 16, 2017. Answers (1)
- Find without using tables if 2 + log 3 +log y = log 5 +1(Solved)
Find without using tables if 2 + log 3 +log y = log 5 +1
Date posted: November 16, 2017. Answers (1)
- Solve for x in log x + log 6 = log 36 (Solved)
Solve for x in log x + log 6 = log 36
Date posted: November 16, 2017. Answers (1)
- Simplify (a) Log (a + 1) – log (a^2 -1) (b) Log x^4 +log x (c) Log 15 + log 3 – log...(Solved)
Simplify
a. Log (a + 1) – log (a^2 -1)
b. Log x^4 +log x
c. Log 15 + log 3 – log 9
Date posted: November 15, 2017. Answers (1)
- Simplify (a) ½ log 9 –log 3 (b) 3 – 2 log 5 (c) Log 16 –log 8(Solved)
Simplify
a. ½ log 9 –log 3
b. 3 – 2 log 5
c. Log 16 –log 8
Date posted: November 15, 2017. Answers (1)
- Simplify (a) Log 6 +log 4 (b) Log 4 – log 2 (c) Log 60 – log 20(Solved)
Simplify
a. Log 6 +log 4
b. Log 4 – log 2
c. Log 60 – log 20
Date posted: November 15, 2017. Answers (1)
- Express in terms of x, y, and z given that log a =x, log b =y and log c = z (a) Log a^2b (b) Log...(Solved)
Express in terms of x, y, and z given that log a =x, log b =y and log c = z
a. Log a^2b
b. Log (a/b)
c. Log (a^2b/c)
Date posted: November 15, 2017. Answers (1)
- State the three laws of logarithms.(Solved)
State the three laws of logarithms.
Date posted: November 15, 2017. Answers (1)
- Express the following in terms log x, log y, and log z (a)Log xy (b) Log xyzc. Log (x/y)(Solved)
Express the following in terms log x, log y, and log z
a. Log xy
b. Log xyz
c. Log (x/y)
Date posted: November 15, 2017. Answers (1)