exam Maths Puzzle Numerical Ability

Assuming that a planet is a perfect sphere with a circumference of 20771 km and an average density of 2.41 g/mL, what is its approximate mass?

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exam Other Question

Currently you have $80.00 and your sister has $145.00. You decide to save $6.00 of your allowance each week, while your sister decide to spend her whole allowance plus $7.00 each week. How long will it be before you have as much money as your sister. A baseball player has played baseball for several years. The following table showshit batting average for each year over a 10 year period.

1988 1989 1990 1991 1992