Question

The number of students opting cricket and the number of students opting hickey.

Answer 1

Total no. of students $=1800$

No. of students opted football $=750$

No. of students opted cricket $=800$

$\Rightarrow$ No. of students opted hockey $=1800-(750+800)=1800-1550=250$

Now,

Ratio of number of students opted cricket to the number of students opted hockey $=\frac{800}{250}=\frac{50\times 16}{50\times 5}=\frac{16}{5}$