If the curved surface area of a right circular cylinder is 880 cm² and the diameter of its base is 7 cm, then the height (in cm) of the cylinder is ______.
Take π =\( \frac{22}{7} \)
In this question, a group of numbers/symbols is coded using letters as per the table given below and the conditions which follow. The correct combination of codes following the conditions is your answer.
| Number/symbol | * | 2 | @ | 5 | ^ | + | 7 | # | % | 9 | 4 |
| Letter code | J | P | A | F | D | N | R | K | M | Z | B |
Conditions:
(i) If both first and fourth elements are even numbers, the third element is to be coded as the code for the third element.
(ii) If both second and third elements are perfect squares, the third element is to be coded as the code for the second element.
Which one of the following would be the code for % 9 4 # 2 ?