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Quantitative Aptitude ( CCS)

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Out of ten persons, 9 persons spent Rs. 30 each for their lunch. The tenth one spent Rs. 90 more than the average expenditure of all the ten. The total money spent by all of them was

Rs400

Rs360

Rs420

Rs380

Explanation:

Solution:
Let the average be x.
Then 10x =9*30 + (x+90)
10x=270+90+x
9x=360
x=40.
Total money spent= 10*40 =Rs400.

By: Pranav Gupta

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