In village Madhubani, 8 women and 12 girls can paint a large mural in 10 hrs. 6 women and 8 girls can paint it in 14 hours. The number of hrs taken by 7 women and 14 girls to paint the mural is
A
10
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B
15
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C
20
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D
35
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Solution
The correct option is B 10 8w+12g=110 6w+8g=114 Solving we get, w=1140,g=1280 ∴ Time required by 7 women and 14 girls =17140+14280=110=10hrs