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In this post we are about to learn how to calculate simple interest and compound interest problems with some short tricks. In exams we don’t have time to calculate on paper with formulas. we have to it in mind so quickly because Every second matter in examination hall.
Now, here are some shortcut tricks for Simple Interest (S.I) and Compound interest (C.I.) with these i think you sure have some help in these chapter
lets first thing to do is learn some PERCENTAGE basic.
we have using these BASIC formulas
S.I. = PxRxT / 100
BUT there are some example how these shortcut tricks that
In how many years will a sum of money double itself at 12% per annum?
a. 6years 6 months
b. 7 years 6 months
c. 8 years 3 months
d. 8 years 4 months
at what rate of percent of simple interest will a sum of money double itself in 12 years?
The rate at which a sum become four times of itself in 15 years at simple interest will be?
if a sum of money at simple interest double in 6 years. it will become 4 time in ?
a. 12 years
b. 14 years
c. 16 years
d. 18 years
How long will it take a sum of money invested at 5% p.a. by simple interest to increase it value by 40%?
a. 5 years
b. 6 years.
c. 7 years
d. 8 years
COMPOUND INTEREST PROBLEMS QUESTION TRICKS
a sum of money place at compound interest double itself in 5 years. It will become 8 times itself at same rate of interest in ?
a. 7 years
b. 10 years
c. 15 years
d. 20 years
By C.I. at 10 % p.a. a sum increased to 2662 in 3 years what will be the principal amount ?
In C.I, what will be the rate of interest if a sum becomes 1331 in 3 years?
d. none of these
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