Question

Gaurav invited $20$ friends on his birthday party. Only $17$ friends came to attend the party. What fraction of the friends did not attend the party ?

• A. $\frac{17}{20}$
• B. $\frac{3}{20}$
• C. $\frac{7}{20}$
• D. $\frac{13}{20}$

Answer 1

The correct option is B $\frac{3}{20}$

Given that number of friends who are invited to the party are $T=20$

The number of friends attended the party is $P=17$

Therefore the number of friends who did not attend the party is $A=20-17=3$

Hence, the fraction of the friends who did not attend the party is $\frac{A}{T}=\frac{3}{20}$