Question

In 1976 the average price of a commodity was 20% more than that in 1975 but 20% less than that in 1974 and more over it was 50% more than that in 1977. The price relatives using 1975 as base year (1975 price relative = 100) then the reduce date is:
(a) 8,.75
(b) 150,80
(c) 75,125
(d) None of these.​







plz guy's give me answer with solution..

Answer 1

Answer:

(b) 150,80

Step-by-step explanation:

Let say 1975 Price = 100

1976 price = 100 + (20/100)100 = 120

20% less than 1974 = 120

=> 1974 Price * ( 1  -  0.2) = 120

=> 1974 Price = 150

50% more than 1977  = 120

=> 1977 price * ( 1 + 0.5) = 120

=> 1977 price =  80

1974 = 150

1975 = 100

1976 = 120

1977 = 80

(b) 150,80

Answer 2

Answer:

this is correct explination......all teachers are requested no to mix index no. with price....plz tell what is actual method...plz do not give irrelevant explinations