exam Maths Puzzle Numerical Ability

The wafer cone shown in the figure is to hold of ice cream when filled to the bottom. The diameter of the cone is 2 inches, and the top of the ice cream has the shape of a hemisphe

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exam Other Question

I have 140 nickels, dimes, and quarters, but I have 15 more quarters that dimes. If the total value of my coins is $20, how many of each coin do I have? Convert the common base- 10 number "13" to a base-2 number

A. 111 base 2
B. 1101 base 2
C. 8401 base 2
D. None of the above