9th Class
Mathematics
Surface Areas and Volumes
Question Bank
Surface Area and Volume
question_answer
A conical flask has height 25 cm. and base diameter 12 cm. Water is poured into the flask in a depth of 15 cm. The diameter of the surface of the water is
A) 6 cm
B) 7.2 cm
C) 8 cm
D) 9 cm
Correct Answer:
A
Solution :
(b): \[\frac{25}{15}=\frac{12}{?}\] \[?=\frac{36}{5}=7.2\] cm