Question

2,20,200,2000,20000 write a java program series


if don't know the answer then don't write it !!
or
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Answer 1

a2 =a1×r2-1 =a1×r1 =2×101 =20

a3 =a1×r3-1 =a1×r2 =2×102 =200

a4 =a1×r4-1 =a1×r3 =2×103 =2000

a5 =a1×r5-1 =a1×r4 =2×104 =20000

Hope it helped :D