Question

PLEASE GIVE THIS ANSWER WITH WORKING.​

Answer 1

(C) 8%

Step-by-step explanation:

Let the required sum be ₹ x

Rate of interest = r %

Time = 2½ years = 5/2 years

Amount = (6/5) × Sum

Amount = Principal + SI

(6/5) × x = x + [(P × R × T)/100]

⇒(6/5) x = x + [(x × r × 5)/ (100 × 2)]

⇒(6/5) = (1 + (r/40))

⇒r = (40 × (1/5))

⇒r = 8%

Answer 2

Answer:

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