where is question no.15,16,17 and 18???

Dear Student, the solutions of these questions are already available on our site. For your convenience, the link has been given below:

https://www.meritnation.com/cbse/class11-commerce/textbook-solutions/accountancy/t.s.-grewal-(2013-edition)/accounts-from-incomplete-records--single-entry-system/page19.20-practical-problems-qno15/604_3393_31875/

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