Question

A few labourers were given a contract to dive a well . on the first day they dive to a depth of 15 metres from second day onwards they dive 10 metres deeper than the previous day. What is the depth of the well at the end of 5 days.​

Answer 1

Answer:

55 metres

Explaination:

On first day, depth = 15 m

On second day, depth = 15+10=25 m

On the third day, depth = 15+10+10=35 m

On the fourth day, depth = 15+10+10+10=45 m

On the fifth day, depth = 15+10+10+10+10= 55 m

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