Question
Ramesh and Suresh started a business by investing in the
ratio 3 : 5, respectively. After 10 months, Ramesh withdrew 1/3rd of his investment, whereas Suresh increased his investment by 20%. If at the end of 20 months, the profit earned by Suresh was Rs. 24,000 more than that by Ramesh, then find the total profit earned by the business.Solution
Let investments be Rs. β3xβ and Rs. β5xβ. Ratio of profit shares: = {(3x Γ 10) + (3x Γ 2/3 Γ 10)} : {(5x Γ 10) + (5x Γ 6/5 Γ 10)} = (30x + 20x) : (50x + 60x) = 50x : 110x = 5 : 11 Let total profit = 16y ATQ: 11y - 5y = 24000 Or, y = 4000 Total profit = 16 Γ 4000 = Rs. 64,000
In a concave mirror which of the following pair of position of object β position of image is correct?
I. At C - At C
II. At F β At Infinity
Which of the following is present in the nucleus of an atom?
Which of the following is not a characteristic of solids ?
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I. Length
II. Thickness
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Which of the following is a bacterial disease?