In a household of 6 members, the average monthly electricity expense per person is ₹1,500. If one member’s monthly expense increases by ₹1,200, what will be the new average monthly expense per person in the household?

(a) Rs. 2700

(b) Rs. 1700

(c) Rs. 1800

(d) Rs. 2000

Question

In a household of 6 members, the average monthly electricity expense per person is ₹1,500. If one member&rsquo;s monthly expense increases by ₹1,200, what will be the new average monthly expense per person in the household?

(a) Rs. 2700

(b) Rs. 1700

(c) Rs. 1800

(d) Rs. 2000

ONLiNE UPSC · Accepted Answer

Original total monthly expense = 1500 &times; 6 = 9000
Increase = ₹1,200 

New total = 9000 + 1200 = 10200
New average = 10200/6 = 1700

Hence, correct option is b.

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