1. The cost of a diamond varies directly as the square of its weight. Once, this diamond broke into four pieces with weights in the
ratio 1:2:3:4. When the pieces were sold, the merchant got Rs 70,000 less. Find the original price of the diamond.
a) Rs 1.4 lakh
b) Rs 2.0 lakh
c) Rs 1.0 lakh
d) Rs 2.1 lakh
Explanation:
2. 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 than
what I had paid. What percent of the total paid by one was paid for the pens?
a) 37.5%
b) 62.5%
c) 50%
d) None of these
Explanation:
3. Instead of a metre scale cloth merchant uses a 120 cm scale while buying but uses an 80 cm scale while selling the same cloth. If
he offers a discount of 20 per cent of cash payment, what is his overall per cent profit?
a) 20%
b) 25%
c) 40%
d) 15%
Explanation:
4. A student gets an aggregate of 60% marks in five subjects in the ratio 10:9:8:7:6. If the passing marks are 50% of the maximum
marks and each subject has the same maximum marks, in how many subjects did he pass the exam?
a) 2
b) 3
c) 4
d) 5
Explanation:
5. After allowing a discount of 11.11%, a trader still makes a gain of 14.28%. At how many per cent above the cost price does he
mark his goods?
a) 28.56%
b) 35%
c) 22.22%
d) None of these
Explanation:
6. Fresh grapes contain 90% water while dry grapes contain 20% water. What is the weight of dry grapes obtained from 20 kg of
fresh grapes?
a) 2 kg
b) 2.5 kg
c) 2.4 kg
d) None of these
Explanation:
7. A man earns x % on the first 2000 rupees and y % on the rest of his income. If he earns Rs 700 from Rs 4000 and Rs 900 from Rs
5000 of income, find x
a) 20
b) 15
c) 25
d) None of these
Explanation:
8. One bacterium 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, then what is the number in first generation?
a) 1 million
b) 2 million
c) 4 million
d) 8 million
Explanation:
9.In a company 40% are male, out of which 75% earn a salary of 25,000 plus. If 45% of the employees 25,000 plus salaries, what is
the fraction of female employees earning less than or equal to 25,000?
a) 1/4
b) 3/7
c) 3/4
d) 5/9
Explanation:
10. 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) 2
b) 3
c) 4
d) 5
Explanation:
