exam Maths Puzzle Numerical Ability

What is the sum of the prime factors of 1001?

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exam Other Question

A vending machine will accept nickels and dimes only. The attendant checks the machine and finds a total of 42 coins whose value is $3.40. How many coins of each type were there? OK, I am banging my head on my desk over this one!

I have 27 coins in nickles, dimes and quarters. There are five more dimes than nickles. The total value of the coins is $3.55. What is the number of quarters?

Ugg! Please help, thank you