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1. Study the table carefully and answer the given questions.
What is the average number of pages printed by printer B on Monday, Tuesday, and Friday ?
= 147 + 189 + 93
= 429
∴ Required average
=
= 143
| Number of pages printed by 5 printers during 5 days | |||||
| Printers | A | B | C | D | E |
| Days | |||||
| Monday | 139 | 147 | 211 | 141 | 184 |
| Tuesday | 141 | 189 | 164 | 189 | 151 |
| Wednesday | 115 | 141 | 159 | 156 | 136 |
| Thursday | 89 | 223 | 120 | 147 | 113 |
| Friday | 187 | 93 | 257 | 160 | 124 |
What is the average number of pages printed by printer B on Monday, Tuesday, and Friday ?
Solution:
Total number of pages printed by printer B on Monday, Tuesday and Friday= 147 + 189 + 93
= 429
∴ Required average
=
= 143