Question

. at what rate percent shall a sum of rupees 400 amount to rupees 520 in 5 year ​

Answer 1

Answer:

Rate=6%

Step-by-step explanation:

Amount=520 rupees

Principle=400 rupees

We known,

Amount=Principle+Simple interest

520=400+SI

SI=520-400

=120 rupees

Time=5 years

We known,

SI=principle×time×rate

100

120=400×5×rate

100

120×100=400×5×rate

rate=120×100

400×5

rate=6%

Answer 2

Answer: Plz prefer attachment

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