exam Maths Puzzle Numerical Ability

RAY HAS $7.60 IN QUARTERS AND DIMES. IN ALL, HE HAS 40 COINS. HOW MANY COINS OF EACH KIND DOES HE HAVE?

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exam Other Question

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? Five fair coins are tossed. Find the probability of obtaining 4 heads and
1 tail.