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a +b =4x = 4×3=12 b +c =7x =7×3=21 c +a= 9x =9×3 =27 so, 2(a +b +c) = 4x+7x+9x=20x a+ b+ c =10x ATQ- 10x = 30 X=3 So now, c= (a +b +c) – (a +b) C = 30-12 =18
A and B together can complete a task in 12 days. A alone can complete the task in 20 days. In how many days can B alone complete the task?
A person spends 40% of his income on rent, 30% on food, and 20% on education. If he saves ₹2000, what is his total income?
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A regular hexagon is inscribed in a circle of radius 10 cm. Find the perimeter of the hexagon.
Find the value of x in 5 (5x – 6) = 25 (3x – 3)
If the ratio of the ages of A and B is 3:5, and after 5 years, the sum of their ages will be 50 years, what are their current ages?
If the roots of the equation x² + 5x + k = 0 are real and equal, find the value of k.
