exam Maths Puzzle Numerical Ability

8 radical 32 + 4 radical 50

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exam Other Question

A fuel oil storage depot had an 8 week supply on hand. However, cold weather caused the supply to be used in 6 weeks when 20 000 L extra were used each week. How many liters were used in the original supply??? If x^9=127 then find x^4 accurate to two digits after the decimal point.