Question

The cost of digging a well after every metre of digging ,when it costs $150 for the first metre and rises by $50 for each subsequent mere ​

Answer 1

Answer:

150, 200, 250, 300 … forms an A.P

Step-by-step explanation:

We can write the given condition as;

Cost of digging a well for first metre = Rs.150

Cost of digging a well for first 2 metres = Rs.150 + 50 = Rs.200

Cost of digging a well for first 3 metres = Rs.200 + 50 = Rs.250

Cost of digging a well for first 4 metres =Rs.250 + 50 = Rs.300

And so on..

Clearly, 150, 200, 250, 300 … forms an A.P. with a common difference of 50 between each term.

Answer 2

We can write the given condition as;

Cost of digging a well for first metre = Rs.150

Cost of digging a well for first 2 metres = Rs.150+50 = Rs.200

Cost of digging a well for first 3 metres = Rs.200+50 = Rs.250

Cost of digging a well for first 4 metres =Rs.250+50 = Rs.300

And so on..

Clearly, 150, 200, 250, 300 … forms an A.P. with a common difference of 50 between each term.