Out of nine persons, 8 persons spent ₹30 each for their meals. The ninth one spent 20 more than the average expenditure of all the nine. The total money spent by all of them was :
Answer & explanation
Correct answer: option 3
Let the ninth one spent Rs. x
Spent by 8 persons = 240
x - \(\frac{240 + x}{9}\) = 20
( Avg of money spent by 9 persons = \(\frac{240 + x}{9}\)
⇒ Bx = 420
⇒ x = 52.5
Total money spent by all of them = 240 + 52.5 = 292.5