How many kg of flax seeds at 70 rs per kg must a man mix with 25 kg of flax seeds at 26 rs per kg so on selling the mixture at 60 rs per kg he gains 20% on the outlay?

How many kg of flax seeds at 70 rs per kg must a man mix with 25 kg of flax seeds at 26 rs per kg so on selling the mixture at 60 rs per kg he gains 20% on the outlay? Correct Answer 30 kg

The quantity of flax seeds at 70 rs/kg be x kg

Cost price of the mixture = S.P × 100 / (100 + gain %)

⇒ 60 × 100/ (100 + 20)

⇒ 60 × 100/120

⇒ Rs. 50/kg.

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The required ratio = 24 : 20 = 6 : 5

According to question,

6 : 5 = x : 25

x = 30 kg

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