1. A student took five papers in an examination, where the full marks were the same for each paper. His marks in these papers were in the proportion of 6 : 7 : 8 : 9 : 10. In all papers together, the candidate obtained 60% of the total marks. Then, the number of papers in which he got more than 50% marks is
(a) 1
(b) 3
(c) 4
(d) 5
2. A college has raised 75% of the amount it needs for a new building by receiving an average donation of Rs. 600 from the people already solicited. The people already solicited represent 60% of the people, the college will ask for donations. If the college is to raise exactly the amount needed for the new building, what should be the average donation from the remaining people to be solicited?
(a) 300
(b) 250
(c) 400
(d) 500
3. Forty percent of the employees of a certain company are men and 75% of the men earn more than Rs 25,000 per year. If 45% of the company's employees earn more than Rs 25,000 per year, what fraction of the women employed by the company earn Rs 25,000 per year ?
(a) 2/11
(b) 1/4
(c) 1/3
(d) 3/4
4. In a survey of political preferences, 78% of those asked were in favour of at least one of the proposals : I, II and III, 50% of those asked favoured proposal I, 30% favoured proposal II and 20% favoured proposal II. If 5% of those asked favoured all three of the proposals, what percentage of those asked favoured more than one of the three proposals ?
(a) 10
(b) 12
(c) 17
(d) 22
5. One bacteria splits into eight bacteria of the next generation. But due to environment, only 50% of one generation can produce the next generation. If the seventh generation number is 4096 million, what is the number in first generation ?
(a) 1 million
(b) 2 million
(c) 4 million
(d) 8 million
6. I bought 5 pens, 7 pencils and 4 erasers. Rajan bought 6 pens, 8 erasers and 14 pencils for an amount which was half more what I had paid. What per cent of the total amount paid by me was paid for the pens ?
(a) 37. 5%
(b) 62.5%
(c) 50%
(d) None of these
7. A man earns x% on the first Rs 2,000 and y % on the rest of his income. If he earns Rs 700 from Rs 4,000 and Rs 900 from Rs 5,000 of income, find x%.
(a) 20%
(b) 15%
(c) 25%
(d) None of these
8. The price of a Maruti car rises by 30% while the sales of the car comes down by 20%. What is the percentage change in the Total revenue ?
(a) - 4%
(b) - 2%
(c) + 4%
(d) + 2%
9. A person who has a certain amount with him goes to market. He can buy 50 oranges or 40 mangoes. He retains 10% of the amount for taxi fares and buys 20 mangoes and of the balance, he purchases oranges. Number of oranges he can purchase is
(a) 36
(b) 40
(c) 15
(d) 20
10. 2/5 of the voters promise to vote for P and the rest promised to vote for Q. Of these, on the last day 15% of the voters went back their promise to vote for P and 25% of voters went back of their promise to vote for Q, and P lost by 2 votes. Then, the total number of voters is
(a) 100
(b) 110
(c) 90
(d) 95
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