Question

7.Find the simple Interest and Amount

(a)Principal = ₹ 640 ,

Rate = 12¹/₂% p.a. , Time = 6 months​

Answer 1

Answer:

Simple Interest = P.×R.×T. / 100

P= rs 640

Rate = 12 1/2% = 25/2 %

Time = 6

S.I. = 480

Amount = S.I. + principal

= 480+640

=rs 1120

Answer 2

Answer:

SI=prt/100

=(640×(25/2)×(1/2))/100

=16000/400

=Rs40

A=P+SI

=640+40

=Rs680