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The area enclosed between the circumferences of two concentric circles is 16π cm2 and their radii are in the ratio 5 ∶ 3. What is the area of the outer circle?
A train covers a certain distance at a speed of 80 km/h in 6 hours. Find the speed of the train for covering the same distance in 5 hours.
In an election, the winning candidate received 15744 votes, which are 48% of the electorate. The only other candidate received 22% of the electorate. What is the number of members who did NOT vote?
Amit, Bipin and Kaithi can complete a piece of work in 20, 30 and 60 days respectively. If Bipin and Kaithi help Amit every third day, in how many days can Amit complete the work?
Manish buys an old car for Rs. 5,300 and spend Rs. 1,000 on its repairs. If he sells the car for Rs. 7,000, his gain percent is:
Three persons P, Q and R rent a piece of land to graze their cows. P grazes 15 cows for 4 months, Q grazes 21 cows for 3 months and R grazes 24 cows for 5 months. If the rent of the land for a year is Rs. 3240, then how much money will P give as the rent?
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The following table shows the amount of annual rainfall in inches in 8 different states of India.
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How many states have witnessed an increase in the amount of annual rainfall continuously for two times in immediate years?
The marked price of an article is Rs. 550. It is sold for Rs. 428.45 after giving two successive discounts of 18% and x% on the marked price. What is the value of 2x?
The following pie chart shows the spending of a country on tourism in various states during the year 2012. Total spending of the country = Rs. 49,62,000
The amount spent on state together D1 and D4 exceeds that spent on together D2 and D7 by:
17 articles were bought for Rs. 3,910 and sold for Rs. 4,590. How much was the approximate profit percentage per article?
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