Keilania:
Answer key to the second part of quitoesn no 20 is not proper. Answer to this quitoesn is given based on the assumption that sum of certain number of consecutive terms of the AP,starting from the first. But the sum mentioned in the quitoesn is not necessarily from the first term. It is clearly stated in the Malayalam version of this quitoesn.
Answer key to the second part of quitoesn no 20 is not proper. Answer to this quitoesn is given based on the assumption that sum of certain number of consecutive terms of the AP,starting from the first. But the sum mentioned in the quitoesn is not necessarily from the first term. It is clearly stated in the Malayalam version of this quitoesn.