IBPS Government Jobs Exams Numerical Ability Averages

There were 30 boarders in a hostel.10 New men joined. The total expenses increased by Rs 60 but the average per head decreased by Re 1. What was the initial monthly expenditure of hostel ?
A)Rs 3600 B)Rs 3000 C)Rs 300 D)None of these

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IBPS Other Question

In an election, 5% of the total votes are invalid votes. Among 3 candidates, A got 38%
of total valid votes, B got 20% of total votes and C got remaining votes. If C won election by 2850 votes then find out total votes?
A)60000 B)85000 C)50000 D)75000 E)None of these The ratio of milk and water in 55 kg of adulterated milk is 7 : 4 .How much water should be added to the mixture to make the ratio 7 : 6 ?
A)15 kg B)7 1/2 kg C)5 kg D)10 kg E)None of these