Identify an operating system from the following software
Which of the following command would undo the last operation carried out in Microsoft Word
While typing, a series of letters were highlighted and the keyboard key combination "Ctrl + B" was executed, the highlighted letters would be
Table 1 is a part of MS Excel worksheet that shows the marks obtained by some students in an examination. Use the table to answer questions 20 and 21.
| S/N | A | B | C | D | E | F |
| 1 | NAME OF STUDENT | ENGLISH LANGUAGE | MATHEMATICS | DATA PROCESSING | COMPUTER STUDIES | CIVIC EDUCATION |
| 2 | ANENE LORRETA | 65 | 90 | 70 | 85 | 65 |
| 3 | BAKARE IMAN | 60 | 65 | 75 | 80 | 75 |
| 4 | ENEH GRACE | 75 | 65 | 65 | 75 | 60 |
| 5 | MOHEMMED DEJI | 65 | 60 | 65 | 60 | 60 |
| 6 | ONYEBUEKE DEBORAH | 89 | 65 | 60 | 60 | 65 |
Which of the following formulas would calculate the average score of the students in Mathematics?
Which of the following formulas would calculate the total score of ONYEBUEKE DEBORAH in the five subjects
| S/N | A | B | C | D | E | F |
| 1 | NAME OF STUDENT | ENGLISH LANGUAGE | MATHEMATICS | DATA PROCESSING | COMPUTER STUDIES | CIVIC EDUCATION |
| 2 | ANENE LORRETA | 65 | 90 | 70 | 85 | 65 |
| 3 | BAKARE IMAN | 60 | 65 | 75 | 80 | 75 |
| 4 | ENEH GRACE | 75 | 65 | 65 | 75 | 60 |
| 5 | MOHEMMED DEJI | 65 | 60 | 65 | 60 | 60 |
| 6 | ONYEBUEKE DEBORAH | 89 | 65 | 60 | 60 | 65 |
