Latest self Aptitude Question SOLUTION: 19 persons went to a hotel for a combined dinner party. 13 of them spent Rs 79 each for the dinner and the rest spent Rs 4 more than the average expenditure of all the 19. What was

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(#M40001408) SELF Logical Reasoning question Keep an EYE

19 persons went to a hotel for a combined dinner party. 13 of them spent Rs 79 each for the dinner and the rest spent Rs 4 more than the average expenditure of all the 19. What was the total money spent by them?

(a)Rs1628.40 (b)Rs1536 (c)Rs1492 (d)none of these

suneil (13 years ago)

Solved sandeep reddy m Read Solution (3)

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Read Solution (3) :

suneelkumar.avvari  (13 years ago)

let assume average as 'x'
ans :b
solution : (13*79)+(6(x+4)) = 19x
1027 + 6x + 24 = 19x
1051 = 13x
x = 1051/13
total money = 19x = 1536

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sandeep reddy m  (13 years ago)

1536 is correct
_________________________________________
13 membes--->13*79=1027
let k be average
so remaining 6-->(k+4)6
so total=1027+(k+4)6
avg total/19 which equals to k
so1027+(k+4)6/19=k
1027+24=19k-6k
k 1051/13=80.84 this is avg
so total =19*k=19*80.84=1536.07

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Gaurav Singh  (13 years ago)

1536 is correct
let total spent money be x
then averegae will be x/19
13 spent is equal to 13*79
rest i.e 6 spent 6*(x/19+4)
total spent 13*79+6*(x/19+4)
average will be [13*79+6*(x/19+4)]/19 which will be equal to x/19
on solving x(i.e)toal money spent=Rs1536.07

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