Question

a car valued rs 525,000. it depreciate 20% 1st year and therefore each year 15% of its value at beginning of that year. find its value (i) after 2 year and and ( ii) after 3 year​

Answer 1

after 2 year=357000,

after 3 year=303450

Step-by-step explanation:

u can do it by simple calculation

first of all reduce 20% of value then further 15% two times.

now there is a shortcut for such questions

20%=1/5

15%=3/20

first it reduces 20% then 15% two times

now in case of 20% if value was 5 then it reduces by 1 & become 4

in case of 15% if value was 20 then it reduce by 3 & become 17

for 2 year

5 - 4

20-17

multiply up down

100-68

real value was 100 & it become now 68

but real value was 525000

so put 100=525000 & calculate value for 1 then multiply it by 68