Explanation: In two years extra rate% =3×2=6% Extra amount = Rs. 72 (Given) According to the question, 6(in per) of sum = Rs.72 1(in per) of sum=Rs.72\6 Sum=72\6×100=Rs.1200 Hence required sum=Rs.1200

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Asked: January 1, 20222022-01-01T18:11:26+05:30 2022-01-01T18:11:26+05:30Category: Number Puzzles

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Mighty Ashish · Answer 1 · 2022-01-01T18:12:04+05:30

Explanation:

Let the Rate \% = R

According to the question,

5000×2×R\100+3000×4×R\100=2200

100R+120R=2200

220R=2200

R=10%

Hence required rate(in per)=10%