At the fair I bought 6 pineapples and two jack fruits for Rs 15.
If I could have brought 4 more pineapples FOR Rs. 14 than jack fruits for Rs 9, what would be the price of each?
Please help!
Answers
Answered by
8
6 pineapples = 14+14÷2 = rs 21
two jack fruit is 9×2= rs18
two jack fruit is 9×2= rs18
Answered by
4
Answer:
Each pineapple cost RS.1.75 and each jack fruit cost Rs. 2.25
Step-by-step explanation:
p = pineapples, j = jack fruits.
Below equation is formed as per data given.
6p + 2j = 15;
j = (15 - 6p) / 2 ---- [1]
Four more pineapples (p)bgt for Rs. 14 than jack fruits(j) for Rs. 9.
14/p - 9/j = 4 ------ [2]
Substitute [1] in [2]; you'll get a quadratic which will simplify to:
- 27p + 35 = 0;
- 20p - 7p + 35 = 0
4p(p - 5) - 7(p - 5) = 0
(p - 5)(4p - 7) = 0
P=1 ¾.
Substitute p value in 1.
j = (15 - 6p) / 2
j = (15 - 10.5)/2
j = 2 1/4
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