Given that 24 carat gold is pure gold, 18 carat gold 3/4 gold and 20 carat gold is 5/6 gold. Find the ratio of the pure gold in 18 carat gold to the pure gold in 20 carat gold. A. 5:8 B. 9:10 C. 15:24 D. 8:5

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

What is a dodging number?

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?