Question

कॉस्ट ऑफ डिजाइंस ए वेल आफ्टर एवरी मीटर ऑफ डिजाइन व्हेन इट कॉस्ट 150 फॉर द फर्स्ट मीटर एंड राइज बाय कॉस 250 फॉर इट्स सर्विस क्यूट्स मीटर​

Answer 1

Answer:

Here , the cost of digging for 1st metre = Rs. 150

The cost of digging for first 2 metres = Rs. 150 + 250 = Rs. 400

The cost of digging for first 3 metres = Rs. 150 + (Rs. 250) × 2 = Rs. 650

The cost of digging for first 4 metres = Rs. 150 + (Rs. 250) × 3 = Rs. 900

∴ The terms are: 150, 400, 650, 900, ...

Since, 400 – 150 = 250

And 650 – 400 = 250

⇒ (400 – 150) = (650 – 400)

∴ The above terms form an A.P.

Step-by-step explanation:

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