Q. 43 U5.0( 1 Vote )

2m5n (m, n N) ends with ………..
A. 0

B. 5

C. 25

D. 125

Answer :

2m5n = 2m – 1 × 5n – 1 × 2 × 5 = 2m – 1 × 5n – 1 × 10


(m, n N so (m – 1), (n – 1) N – {0} )


2m × 5n ends with 0

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