exam Maths Puzzle Numerical Ability

a wire is bent in the form of a quadrant of a circle of diameter 1.4m. find the length of the wire, if the quadrant is bounded by the radii of the circle.

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exam Other Question

Simplify

Square root 7 (9 Square root 2 - 3 Square root 7)

Thanks, a three digit number is 28 times the sum of its digits. the units digit is twice the tens digit and 3 more than the hundreds digit. Find the number