Explanation:

When two Or more persons have made a joint promise, then unless a contrary intention appears by the contract, all such persons, during their joint lives and, after the death of any,of them, his representative jointly with the survivors and after death of last survivor, the representative of all jointly must fulfill the promise. For example A, B, C jointly promises to pay Rs. 30001- to D. A dies, but B & C along with the legal representative are jointly,and severally liable to pay the amount to D. However, if a contrary intention appears from the contracts then the rule given above shall not apply. (Section 42 Indian Contract Act)