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Krish is 45 years old and his mother Crishtina is 73 years old.
Can you find out how many years ago, his mother was three times his age?
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Replace the (?) with the correct mathematical signs to make the expression equal to 59.
18 ? 12 ? 4 ? 5 = 59
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Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?
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John was working on a Chemical Mixture whose weight comprise 90% liquid and 10% solid. The total weight of the mixture is 20 pounds. After a while, John noticed that some of the liquid evaporated and now the liquid comprises just 50% of the weight.
What is the weight of the chemical mixture now?
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How many triangles are there on the puzzle below?
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