Ques:- A and B entered into a partnership investing Rs.16,000 and Rs.12,000 respectively. After 3 months, A withdrew Rs.5000 while B invested Rs.5000 more. After 3 years of C, out of a total profit of Rs.21,000. The share of B exceeds that of C, out of a total profit of Rs.26,400 after one year by
A. Rs. 2400
B. Rs. 3000
C. Rs.3200
D. Rs.3600
Ques:- A prime number N, in the range 10 to 50 remains unchanged when its digits are reversed. The square of such a number is
A. 1936
B. 1089
C. 484
D. 121