The cost of a book, pen and box is Rs 48, rs 32 and rs 80.find the smallest sum of money with which exact number of book, pen and boxes can be purchased ​

I think that these are only the smallest sum of money that can be purchased

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4

answer: the answer is b. i think hope i got it correct

step-by-step explanation: