v
DEFERRED ANNUITIES.
65
100. To find the value of a Perpetuity.
Multiply the perpetuity by 100 and divide by the rate per cent.
Example. A person is about to purchase a freehold estate producing
¿£90 per annum, what sum should he give to allow him 4 per cent interest
for his money ?
The annuity 90
multiplied by 100
gives 9000
which divided by the rate per cent, gives
9000
4
= ¿£2250.
101. To find the present value of a Deferred Perpetuity.
Multiply the present value of £l due at the end of as many years
as the perpetuity is deferred, by the perpetuity and by 100, and divide
by the rate per cent.
Example. A holds a freehold estate producing £300 per annum, on
which he has granted a lease which has 10 years to run, what sum
ought B to give him to come into possession of the estate at the end
of that time so as to receive 5 per cent interest for his money ?
In Table 4 under 5 per cent opposite 10 years, } „
we find *.....)
this multiplied by 300 x 100 = 30000
gives 18417.39 '
which divided by 5, gives 3683.478 —
£3683 9 7.