exam Maths Puzzle Numerical Ability

The reciprocal of a number plus the reciprocal of twice the number equals 3/10. Find the number.

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exam Other Question

Angle L and Angle M are complementary angles. Angle N and Angle P are complementary angles. If angle L=y-2, angle M=2x+3, angle N=2x-y, and P=x-1. Find the values of x, y, angle L, angle M, angle N, and angle P. Mr. Santos invested 50,000 pesos, part of which at 5% per year and the rest at 6% per year. his annual income from the two investments was 2000 pesos. How much did he invest at each rate?