• # question_answer 23) A sells a watch to B at 20% gain, B sells it to C at 15% gain and C sells it to D at a loss of 10%. If D pays Rs. 1863 for it, then how much does A pay for it? A)  Rs. 2000          B)  Rs. 1000        C)  Rs. 1500          D)  Rs. 3000

(c): A's $C.P=x$ B's $C.P=1.2x$ C's C.P$=1.2x\times 1.15=1.38x$ D's C.P$=1.38x\times 0.9$ Now, $1.38x\times 0.9=1863$ $\Rightarrow x=\frac{\cancel{1863}}{1.38\times \cancel{0.9}}=\frac{2070}{1.38}=1500/-$