Question

There were 35 students in a hostel. Due to the admission of 7 new students, the expenses

of the mass were increased by ` 42 per day, while the average expenditure per head

diminished by ` 1. What was the original expenditure of the mass?
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Answer 1

Answer:

Step-by-step explanation:

lt orginal avg. expen.was x

total xpendature=35x

as given in question;  expenses of the mess were increased by 42 per day while the average expenditure were diminished by 1 per head,

New expenditure due to addition of 7 students = 42(x – 1)

42(x - 1) - 35x = 42

⇒ 7x = 84

⇒ x = 12

Therefore original expenditure = Rs.(35 × 12)=Rs.420.

thnxxxx

may b hlpful fr u

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