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Question :

There are 50 students in a hostel. Now the number of students got increased by 8. Due to this the expenses of the mess increased by 30 rupees per day while the average expenditure is decreased by 2 rupees. Find the original expenditure.

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0 Answer 0 Comments 75 views January 07, 2019 at 07:48 pm

Question :

The average height of 50 students in a class is 165cm. On a particular day, three students P,Q and R are absent, so the average of the remaining students becomes 163cm. If the height of P and Q is equal and height of R is 2 cm less than P, then find the height of P.

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0 Answer 0 Comments 79 views January 07, 2019 at 07:43 pm

Question :

In a class, the average marks got by number of students in English is 52.25. 25% students placed in C category made the average of 31 marks, while 20% who were placed in A category made the average of 80 marks. Find the average marks of the remaining students? 

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0 Answer 0 Comments 73 views January 07, 2019 at 07:36 pm

Question :

The average age of the group having 3 members is 84. One more person joins the group and now the average becomes 80. Now a fifth person comes whose age is 3 years more than that of fourth person replaces the first person. After this the average age of the group becomes 79. What is the weight of the first person? 

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0 Answer 0 Comments 77 views January 07, 2019 at 07:34 pm

Question :

For three successive years, the cost of petrol were Rs 20 per litre, Rs 22 per litre and Rs 23.50 per litre respectively. If a man spent an average of Rs 8000 per year on petrol, then he spent what average cost of petrol per litre for the three years? 

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0 Answer 0 Comments 69 views January 07, 2019 at 07:33 pm