Between which two consecutive measurements on the neem sapling graph did its height grow by the largest…

Explanation

1. 01

   1 January to 1 February: $\frac{6}{10} \times 100 = 60\%$.

2. 02

   1 February to 1 March: $\frac{8}{16} = 50\%$. 1 March to 1 April: $\frac{10}{24} \approx 41.7\%$.

3. 03

   1 April to 1 May: $6 \div 34 \approx 17.6\%$. 1 May to 1 June: $3 \div 40 = 7.5\%$. The largest is 60%.