An old lady engaged a domestic help on the condition that she would pay him Rs. 90 and a gift after service of one year. He served only 9 months and received the gift and Rs. 65. Find the value of the gift.
Let 'G' be the value of the gift. Hence, the monthly salary of domestic help = $$\dfrac{90+G}{12}$$.
Therefore, $$9*\dfrac{90+G}{12} = G+65$$
$$3G = 30$$. Hence, G = Rs. 10.
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