# Q. 11.     Out of $\inline 1800$ students in a school, $\inline 750$ opted basketball, $\inline 800$ opted cricket and remaining opted table tennis. If a student can opt only one game, find the ratio of              (a) Number of students who opted basketball to the number of students who opted table tennis.              (b) Number of students who opted cricket to the number of students opting basketball.              (c) Number of students who opted basketball to the total number of students.

Total number of students = 1800

Number of students who opted for basketball = 750

Number of students who opted for cricket= 800

Number of students who opted for Table Tennis = 1800 - 750 - 800

= 250

Now,

The ratio of

(a) The number  of students who opted basketball to the number of students who opted table tennis:

$\frac{750}{250}=\frac{3}{1}=3:1$

(b) The number  of students who opted cricket to the number of students opting basketball:

$\frac{800}{750}=\frac{16}{15}=16:15$

(c) The number of students who opted basketball to the total number of students:

$\frac{750}{1800}=\frac{5}{12}=5:12$

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