Question

9. a) 3 kgs of sugar and 7 kgs of rice cost Rs 550 and 7 kgs of sugar and 3 kgs of rice cost Rs 630. Find
the cost of sugar and rice per
kg, using Cramer’s rule.

b) 8 men or 16 boys can do a work in 39 days, in how many days will 4 men and 18 boys do it?​

Answer 1

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