Directions (next five questions): These questions consits of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and choose the appropriate option.
What is the curved surface area of the right circular cylinder
I. Area of the base of the cylinder is 154 cm2
II. Volume of the cylinder is 1232 cm2
From statement I,
πr2=154
22/7×r2=154
r=7cm
From statement II,
πr2h=1232
h=1232/54
h=8cm
ஃ Curved surface area of the cylinder = 2πrh
= 2×22/7×7×8
=352sqcm
Directions (next six questions): What should come in place of question mark (?) in the following number series ?
19 19.6 20.8 23.2 28
18 19 24 37 66 ?
24 26 20 32 12
6 4 5 11 ? 189
19 10 11 18 38