The correct option is D ₹1450
We know that,
⇒¯X=1n(∑xi)
⇒n¯X=∑xi
Given that,
n=10 and ¯X=₹ 1445
Now,
⇒n¯X=∑xi
⇒10×1445=∑xi
⇒14450=∑xi
So, total monthly wages of 10 person = ₹ 14450
Monthly salary of one more person who joins the group is ₹ 1500
∴ Total Monthly wages of 11 people
= ₹ 14450 + ₹ 1500 = ₹ 15950
Hence, average monthly salary to 11 people
=Total monthly wages11
=1595011
=₹1450