Problem: Seven kgs of mango cost as much as 10 kgs of apple and 1 kg of orange. 7 kgs of orange cost as much as 1 kg of mango and 2 kgs of apple. How many kgs. of apple can be purchased by the amount of money required to purchase 12 kgs. of mango?

View all: PUBALI BANK | WRITTEN QUESTION SOLVE(MATH) | 2000

Correct Answer: 18 Kgs Apple

Explanation:

7 kgs mango = 10 kgs apple + 1 kg orange ………..(i)

7 kgs orange = 1 kgs mango + 2 kgs apple ………….(ii)

Or, 1 kg mango = 7 kgs orange – 2 kgs apple ………….(iii)

Now from (i) x 7 — (iii) we get,

49 kgs mango = 70 kgs apple + 7 kgs orange

1 kg mango = 7 kgs orange — 2 kgs apple

48 kgs mango = 72 kgs apple

12 kgs mango = $\frac{72 x 12}{48}$ kgs apple= 18 kgs apple

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