IBPS PO Mains 2018 Paper for online practice

Rajni invested ₹ 15000 at simple interest for 2 years at the rate of R% and gets an interest of ₹ 2100. He invested total amount (Principle + Interest) in a scheme, which offered compound interest at the rate of (R%+x%) for two years.
® What are the possible integral values of 'x%' so that obtained compound interest is less than ₹ 3000.
(i) 1%
(ii) 2%
(iii) 3%
(iv) 4%
(v) 5%