Interest increases in proportion to the principal, that is, ratio of interest to
Trincipal remains constant. Let us write the ratio of interest to principal in
two ways and obtain an equation.
Let interest on peincipal 20000 rupees be rupees.
Interest on principal 100 rupees is 8 rupees.
Measure
Enter the len
Length
20000
100
20000 20000 =
100
* 20000 (Multiplying both sides by 20000)
B
r = 1600
Amount to be returned to the bank = principal + interest = 20000 + 1600 = 21600
Practice Set 35
(1 At a rate of 10 p.e.p.a., what would be the interest for one year on 6000?
(2) Mahesh deposited *8650 in a bank at a rate of 6 p..p.a. How much money will he
gel at the end of the year in ail?
03. Ahmed Chacha borrowed 25000 at 12 p.e.p.a. for a year. What amount will he have
10 return to the bank at the end of the year?
(4) Kisanrao wanted to make a pond in his field. He borrowed 35250 from a bank at an
interest rate of 6 p.c.p.a. How much interest will he have to pay to the bank at the
33.33
end of the year?कॉस्ट प्राइस 16 सेलिंग प्राइस 200
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