Mohan invested Rs. 100,000 in a garment business. After few months, Sohan joined him with Rs. 40,000. At the end of the year, the total profit was divided between them in ratio 3:1. After how many months did Sohan join the business?
An Assertion (A) and a Reason (R) are given below.
Assertion (A): If carbon dioxide increases, the polar ice will melt.
Reason (R): The temperature of the earth will increase.
Choose the correct option.
A.
A is true but R is false.
B.
A is false but R is true.
C.
Both A and R are true and R is the correct explanation of A.
D.
Both A and R are true but R is not the correct explanation of A.