exam Maths Puzzle Numerical Ability

I need to find out what the population would be 4 years from now. The population is 45,103,674 and the growth rate if 1.40%.

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exam Other Question

The volume of a quantity of ideal gas was help constant. The inital pressure and temperature were 8000 torr and 1500 kelvins. What was the final pressure if the temperature was raised to 3270 Kelvins?
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Two boys weighing 140 and 105lb, respectively, balance each other on a see-saw sitting 7 ft. apart. What is the distance of each from the pivot point?

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