Math:
A:B:C: D ratio 2:3:4:5
C gets 1000 more than B
What does A get?
Ans. A got 2000


A person will receive 10% interest after 6 month of deposition. He deposits on 1st January and 1st July in a years. What's will be the yearly interest on principal amount...? Something like this...

I think it had none of above answer correct ( I am not sure though) plz correct the questions and also provide the answer with explanation.