Mohan bought a certain number of note-books for Rs $1200$ . He sold $\frac{1}{4}$ of them at $5$ percent loss.
At what price should he sell the remaining note-books so as to gain $10 %$ on the whole ?

Rs $1010$
Rs $1035$
Rs $1135$
Rs $1140$

Question

Mohan bought a certain number of note-books for Rs $1200$ . He sold $\frac{1}{4}$ of them at $5$ percent loss.
At what price should he sell the remaining note-books so as to gain $10 %$ on the whole ?

Rs $1010$
Rs $1035$
Rs $1135$
Rs $1140$

Toppr Admin · Accepted Answer

Let there be n no of notebooksPrice of each note book is 1200-nAmount received-95-xD7-1200-n-n-4-Rs-285For the gain of 10- on the wholeTotal revenue-110-1200-Rs-1320Remaining collection isRs-1320-x2212-285-Rs-1035-

Mohan bought a certain number of note-books for Rs 1200. He sold 14 of them at 5 percent loss. At what price should he sell the remaining note-books so as to gain 10% on the whole ?Rs 1010Rs 1035Rs 1135Rs 1140

Let there be n no of notebooksPrice of each note book is 1200/nAmount received=95%×(1200/n)(n/4)=Rs.285For the gain of 10% on the wholeTotal revenue=110%1200=Rs.1320Remaining collection isRs.(1320−285)=Rs.1035.

Mohan bought a certain number of note-books for Rs $1200$ . He sold $\frac{1}{4}$ of them at $5$ percent loss.
At what price should he sell the remaining note-books so as to gain $10 %$ on the whole ?

Rs $1010$
Rs $1035$
Rs $1135$
Rs $1140$

Let there be $n$ no of notebooks
Price of each note book is $1200 / n$
Amount received $= 95 % \times (1200 / n) (n / 4) = R s .285$
For the gain of $10 %$ on the whole
Total revenue $= 110 % 1200 = R s .1320$
Remaining collection is $R s . (1320 - 285) = R s .1035$ .