A 5m 60cm high vertical pole casts a shadow 3m 20cm long. Find at the same time (i) The length of the shadow cast by another pole 10m 50cm high. (ii) The height of a pole which casts a shadow 5m long.

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What is the formula of \[{x^2} + {y^2} + {z^2}?\

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What is the value of $ 5 $ million dollars in Indian rupees given that one dollar is equal to $ 75 $ Indian rupees.

How many perfect cubes can you find from 1 to 100? How many from -100 to 100?