Question

divide Rs 800 into two parts so that the SI on the first part of 5 years 12 percent per annum is equal to SI on the second part for 2 years at 8 percent per annum
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Answer 1

Answer:

let the two parts are ₹ x and ₹ (800-x)

so,

x.5.12/100=(800-x).2.8/100

=> 60x= 12800-16x

=> 60x-16x=12800

=> 44 x= 12800

=> x=12800/44=3200/11=290.90

two parts are ₹ 290.90

and ₹(800-290.90)=₹509.10