if m,n are natural numbers for what values of m, does 2n×5m each in 5

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if m,n are natural numbers for what values of m, does 2n×5m each in 5

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Step-by-step explanation:2n x 5m

2n is always even for all values of n.

5m is always odd and ends with 5 for all values of m. But 2n x 5m is always even and ends in 0.

∴ 2n x 5m cannot end with the digit 5 for any values of m. No value of m will satisfy 2n x 5m ends in 5.