Question

Rs 1000 was invested every month in a RD scheme ‘A’ paying 12 % pa

Simple interest .

a. use the simple interest formula to find the interest earned in month 1,2

and month 3 . ( SI = PTR/100 these are the first 3 terms of an AP ) [1]

b. use the AP formula to find interest earned in month 8 . [1]

c. use the AP formula to find total interest earned in 1 year . [1]

d. at the beginning of month 5 another RD scheme ‘ B ‘ was opened by

investing Rs 2000 every month , at the same rate of interest .

find the interest earned in scheme B for the first, second and third

month after opening the account . [1]

e. use AP to find total interest earned in 6 months .(scheme B ) ​

Answer 1

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