exam Maths Puzzle Numerical Ability

I HAVE $1.00 IN MY POCKET IT IS ALL IN COINS.
TOTAL COINS IS 50.
I HAVE 50 COINS IN MY POCKET WHICH IS EQUAL TO $1.00. WHAT IS THE BREAK DOWN OF COINS THAT I HAVE? HOW MANY OF EACH ?

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exam Other Question

In the number 7^1000, what is the digit in the units place? the value of x in the following equation: 3 log x = log 125

is it .25?