Total number of men, women and children working in a factory is 18. They earn Rs. 4000 in a day. If the sum of the wages of all men, all women and all children is in ratio of 18 : 10 : 12 and if the wages of an individual man, woman and child is in ratio 6 : 5 : 3, then how much a woman earn in a day?
A. Rs. 120
B. Rs. 150
C. Rs. 250
D. Rs. 400
E. None of these
Answer: Option C
Solution(By Examveda Team)
Ratio of number of men, women and children, $$\eqalign{ & = \frac{{18}}{6}:\frac{{10}}{5}:\frac{{12}}{3} \cr & = 3:2:4 \cr} $$Total (Men + Women + Children) = 18 3X + 2X + 4X = 18 9X = 18 X = 2 Hence, number of women = 2X = 2 × 2 = 4 Share of all women = $$\frac{{10 \times 4000}}{{40}}$$ = Rs. 1000 [18 + 10 + 12 = 40] Thus, share of each woman = $$\frac{{1000}}{4}$$ = Rs. 250
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If a : b : c = 3 : 4 : 7, then the ratio (a + b + c) : c is equal to
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B. 14 : 3
C. 7 : 2
D. 1 : 2
If $$\frac{2}{3}$$ of A=75% of B = 0.6 of C, then A : B : C is
A. 2 : 3 : 3
B. 3 : 4 : 5
C. 4 : 5 : 6
D. 9 : 8 : 10
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