Question

ptincipal = 4000 ,rate = 10%time =2

Answer 1

Simple Interest=
$4000 \times 10 \times 2$
$80000 \div 100 = 800$
therefore,the Simple Interest is ₹800

amount =SI + P

₹800+4000

=₹4800(ANS)

Answer 2

principal for the first year is = 4000
Rate of interest=10% per annum
Interest for first year= Rupees (4000×10×1)/100=400
Amount at the end of 1 year = rupees (4000+400)=4400

interest for second year is = (4400×10×1)/100=440
amount at the end of second year=rupees (4400+440)=8800
CI= Rupees (8800-4000)=4800