A lady bought a plot of land for..... (elementary algebra)

A lady bought a plot of land for Rs. 30 lakhs. She wanted to landscape it. So she bought 15 bushes and 18 trees from a nursery for Rs. 975/-. A month later she bought 7 bushes and 5 trees from the same nursery for Rs. 470/-. She paid a gardener Rs. 5000/- to plant them... How much did each bush and tree cost her??
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B and T are the numbers of bushes and trees.

15B+18T=975; 5B+6T=325; 7B+5T=470. T=(470-7B)/5. Substitute in the other equation:

15B+18(470-7B)/5=975; 75B+8460-126B=4875; 51B=8460-4875=3585; B=3585/51=1195/17=70.29.

T=(470-7*1195/17)/5<0, so there is an error.

Please check the facts and figures in the question.
by Top Rated User (716k points)
selected by
There doesn't seems to be any error in typing... Hence I guess the question had the problem...
by Level 2 User (1.3k points)

Whichever way I tried to reword the question I came up with a negative answer somewhere! I can't believe they would make such a bad mistake in the question so I'm looking for another explanation, and I'll let you know if find one!

by Top Rated User (716k points)

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