book Maths Puzzle Numerical Ability

Simplify the radical.
4 radical sign 3 + 2 radical sign

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book Other Question

simple interest= amount of deposit x interest rate (decimal) x time (years)

deposit $250
5.5 interest
0.5 year i have a probel. i cant solve this question. DETERINE THE COEFFICIENT OF THE (A TO THE THRID POWER) TERM IN THE EXPANSION OF (A+1) TO THE TENTH POWER>