Question

what sum of money will amount ot 5200 in 6 years at the same rate of interest at which 1706 amount to 3412 in 20 years ​

Answer 1

Answer:

₹4000

Step-by-step explanation:

principle = ₹1706

amount = ₹3412

intrest = 3412 - 1706 = ₹1706

time = 20 years

rate = (intrest×100)/(principle×time)

=> rate = (1706 × 100)/(1706×20)

=> rate = 5℅

now

amount = ₹5200

time = 6 years

rate = 5℅

principle = amount - [ (principle × time × rate)/100]

=> principle = 5200 - [ (principle × 6 × 5)/100]

=> p = 5200 - 3p/10

=> p + 3p/10 = 5200

=> (10p + 3p) /10 = 5200

=> 13p = 5200×10

=> p = 52000/13

=> p = ₹4000