A gardener digs a trench. He digs 5 m on the first day and increases by an equal length each day. Over the first 10 days he digs a total of 320 m. How many metres does he dig on the 10th day?

Question

Accepted Answer

59. S10 = 320 = 10/2[2(5)+9d], so 64 = 10 + 9d, 9d = 54, d = 6. a10 = 5 + 9(6) = 5 + 54 = 59 m.

A gardener digs a trench. He digs 5 m on the first day and increases by an equal length each day.
Over the first 10 days he digs a total of 320 m.
How many metres does he dig on the 10th day?

Step-by-Step Solution

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More Class 10 AP Word Problems practice

A gardener digs a trench. He digs 5 m on the first day and increases by an equal length each day.Over the first 10 days he digs a total of 320 m.How many metres does he dig on the 10th day?

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 10 AP Word Problems practice

A gardener digs a trench. He digs 5 m on the first day and increases by an equal length each day.
Over the first 10 days he digs a total of 320 m.
How many metres does he dig on the 10th day?