What is the principal sum?

I. The sum amounts to Rs. 690 in 3 years at S.I.

II.
The sum amounts to Rs. 750 in 5 years at S.I.

III. The rate of interest is 5% p.a.

A. I and III only
B. II and III only
C. I and II only
D. I and III only, or II and III only
E. Any two of the three

• answer will be D
• 12 years agoHelpfull: Yes(1) No(0)
• It will be E
  if 1 and 2 ---> 750-690=60 for two years=> 1 year = 30 => 3 years=90
  690-90=600 => principal sum
  
• 9 years agoHelpfull: Yes(0) No(0)