Which of the following statements are correct ?

A. Time reversal test cannot be tested on Laspeyre's method of index number.

B. Time-reversal test can be tested on Paasche's method of index number.

C. Fisher's index number is an ideal index number.

D. In Paasche's index number, weight is considered as quantity in current year.

Choose the correct answer from the options given below :

A, C and D only

The correct answer is Option (4) → A, C and D only

(A) Laspeyre's method does not satisfy the time reversal test because it does not account for symmetry. When time periods are reversed.

(C) Fisher's index number is considered an ideal index because it satisfies both the time reversal test and factor reversal test.

(D) Passche's index number uses current year quantities as weights.