Critical Thinking Puzzle
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Two unemployed young men decided to start a business together. They pooled in their savings, which came to Rs 2,000. They were both lucky, their business prospered and they were able to increase (heir capital by 50 per cent every three years.
How much did they have in all at the end of eighteen years.View SolutionSubmit Solution- 1,635.3K views
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Some months back, this year, I was walking through the Central Park in New York.
I saw an intelligent looking little boy playing all by himself on the grass. I decided to talk to him and just as an excuse to start the conversation I asked him his age. A mischivious glint flickered in his eyes and he replied, ‘Two days back I was ten years old, and next year I shall be thirteen. If you know what’s today you’ll be able to figure out my birthday and that’ll give you my age.’ I looked at him bewildered. How old was the boy?View SolutionSubmit Solution- 1,635.9K views
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One day when I was walking on the road in New Delhi, a group of boys approached me for donation for their poor boys’ fund. I gave them a rupee more than half the money I had in my purse. I must have walked a few more yards when a group of women approaphed me for donations for an orpbange. I gave them two rupees more than half the money I had in my purse. Then, after a few yards I was approached by a religious group for a donation to the temple they were building. .1 gave them three rupees more than half of what I had in my purse.
At last when returned to my hotel room, I found that I had only one rupee remaining in my purse.
How much money did I have in my purse when I started?View SolutionSubmit Solution- 1,635.8K views
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An unscrupulous trader decided to make some extra profit on Coffee. He bought one type of coffee powder at Rs. 32 a kilo and mixed some of it with a better quality of coffee powder bought at Rs. 40 a kilo, and he sold the blend at 43 a kilo. That gave him a profit of 25 per cent on the cost.
How many kilos of each kind must he use to make a blend of a hundred kilos weight?View SolutionSubmit Solution- 1,639.6K views
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Can you make 2 squares and 4 right angled triangles using only 8 straight lines?
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There is a number, the second digit of which is smaller than its first digit by 4, and if the number was divided by the digits sum, the quotient would be 7. Can you find the number?
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A friend of mine bought a used pressure cooker for Rs. 60. She somehow did not find it useful and so when a • friend of hers offered her Rs. 70 she sold it to her. However, she felt bad after selling it and decided to buy it back from her friend’ by offering her Rs. 80. After having bought it ooce again she felt that she did not really need the cooker. So she sold it at the auction for Rs. 90.
How much profit did she make? Did she at all make any profit?
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A railway track runs parallel to a road until a bend brings the road to a level crossing. A cyclist rides along to work along the road every day at a constant speed of 12 miles per hour.
He normally meets a train that travels in the same direction at the crossing.
One day he was late by 25 minutes and met the train 6 miles ahead of the level crossing. Can you figure out the speed of the train?View SolutionSubmit Solution- 1,636.5K views
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One day I decided to walk all the way from Bangalore to Tumkur. I started exactly at noon. And someone I know in Tumkur decided to walk all the way to Bangalore from Tumkur and she started exactly at 2 JP.M., on the same day.
We met on the Bangalore-Tumkur Road at five past four, and we both reached our destination at exactly the same time.
At what time did we both arrive?View SolutionSubmit Solution- 1,637.5K views
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My friend who owns a farm near Bangalore has five droves of animals on his farm consisting of cows, sheep and pigs with the same number of animals in each drove.
One day he decided to sell them all and sold them to eight dealers.
Each of the eight dealers bought the same number of animals and paid at the rate of Rs. 17 for each cow, Rs. 2 for each sheep and Rs. 2 for each pig.
My friend recieved from the dealers in total Rs. 301.
How many animals in all did he have and how many of each kind?View SolutionSubmit Solution- 1,637.3K views
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