Lots and hedge ratios

Nifty 50 futures lot 65, Nifty Bank lot 30 (5 Nov 2026). Use illustrative index levels of 24,500 and 55,500 and a log-price hedge ratio of 1.03 (Bank Nifty on Nifty). (a) How many Nifty lots per Bank Nifty lot does the hedge require? (b) Find the hedge error of a 1:1 position, and the smallest number of Bank Nifty lots for which some integer number of Nifty lots gives a hedge error below 2%. What is the gross notional? (c) What does this imply for small accounts trading index pairs?