exam Maths Puzzle Numerical Ability

Lena has $31.05 in dimes and quarters. The number of dimes is one-fifth the number of quarters. How many of each does she have?

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exam Other Question

Write 0.06 as a percent.
Sorry people I am really bad with percents. Would it simply be 6%? Or does the zero have to be in there too? Reading .06%? Help please. RAY HAS $7.60 IN QUARTERS AND DIMES. IN ALL, HE HAS 40 COINS. HOW MANY COINS OF EACH KIND DOES HE HAVE?