1 .
A wire when bent in the form of a square encloses an area of 121 $cm^2$. If the same wire is bent in the form of a circle, the area of the circle will be
Answer & Explanation
Answer : Option D |
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Explanation : |
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2 .
Study the following bargraph carefully and answer the following questions.
The graph shows the number of copies of three different novels Godan, MailaAnchal and Mahabhoj sold in various years from 2007 to 2010.
What is the ratio of the number of copies sold of Godan to that of MailaAnchal during the period 2008 to 2010?
Answer & Explanation
Answer : Option C |
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Explanation : |
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The number of copies of Godan sold during 2008 to 2010
= (55+80+60) thousand = 195000
The number of copies Maila Anchal sold during 2008 to 2010
=(45+60+85)x1000 = 190000
Required ratio = 195000:190000=
195:190=39:38 |
3 .
Study the following bargraph carefully and answer the following questions.
The graph shows the number of copies of three different novels Godan, MailaAnchal and Mahabhoj sold in various years from 2007 to 2010.
What is the total number of copies of MailaAnchal sold over the given period?
Answer & Explanation
Answer : Option C |
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Explanation : |
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The total number of copies of Maila Anchal sold = 80 +45+60+85=270 thousand |
4 .
Study the following bargraph carefully and answer the following questions.
The graph shows the number of copies of three different novels Godan, MailaAnchal and Mahabhoj sold in various years from 2007 to 2010.
Total sale of all the three novels in 2010 is what percentage less than the total sale of all the three novels in 2007?
Answer & Explanation
Answer : Option C |
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Explanation : |
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The total number of all three novels sold in 2010=(60+85+40) x 1000
= 185000
The total number of all three novels sold in 2007=( 70 +80+60)x1000
Reqd % = $210 - 185 \times 1000 \times 100 \over 210 \times 1000$ = 11.7% |
5 .
A's capital exceeds B's capital by $41 \over 100$ of B's capital. B invests his capital at compound interest for 3 years at 5% per annum. At what rate per cent per annum at simple interest must A invest his capital in order that at the end of 3 years, the two amount may be the same.
Answer & Explanation
Answer : Option C |
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Explanation : |
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6 .
The bacteria in a culture grows by 5% in the first hour, get destroyed by 5% in the second hour and again grows by 5% in the third hour. If the count of the bacteria at the end of the third hour is 8.3794 x $10^8$, find the original count of bacteria in the sample
Answer & Explanation
Answer : Option B |
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Explanation : |
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7 .
A person takes a boat from place A to place B and returns to A. Place A and B are 21 km apart and he takes 10 hours to go and return. The time taken by the boat to row 7 km downstream is equal to the time taken by the boat to row 3 km upstream, then what is the speed of the current?
Answer & Explanation
Answer : Option B |
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Explanation : |
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8 .
A trader sells two articles, one at a loss of 10% and another at a profit of 15%,but finally there is no loss or gain. If the total selling price of these two articles is ' 12,000. Find the difference between their cost prices
Answer & Explanation
Answer : Option A |
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Explanation : |
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9 .
When a train starts, there are 240 passengers. At the first station 12 passengers got down and 22 passengers got into the train. At the second station 20% of the passengers got down and at the third station 32 passengers get into the train and some passenger get down and now finally there are 85% passengers in the train. Find the number of passenger who got down at the third station.
Answer & Explanation
Answer : Option B |
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Explanation : |
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Number of passengers after deboarding and boarding at the first station
= 240 - 12 + 22 = 250
Passengers left in the train after the second station
= 250 - $1 \over 5$ $\times$ 250 = 200
Let xpeople get down at the third station
ATQ,
200 + 32 - $\times$= 240 $\times$ $85 \over 100$
232 - x= 204
x= 28
The number of passenger who got down at the third station = 28 |
10 .
A man sells a bicycle at a gain of 10%. If he had bought it at 10% less and sold it for Rs.1331 less, he would have still gained 10%. Find the cost price of the bicycle
Answer & Explanation
Answer : Option C |
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Explanation : |
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