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If the operating cost of 6 burners for 6 hours in 8 days is Rs. 450 then find the number of burners if used for 5 hours for 10 day with operating cost of Rs.1250.1. 162. 143. 124. 10 |
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Answer» Correct Answer - Option 1 : 16 Given: 6 burners are used for 6 hours for 8 days with an operating cost 450 Rs. Concept used: \(\frac{{{M_1}{D_1}{H_1}}}{{{W_1}}} = \frac{{{M_2}{D_2}{H_2}}}{{{W_2}}}\) Where M1 denotes the number of burners here. D1 denotes the number of Days and H1 the number of hours. W1 denotes the work in terms of rupees. Calculation: We have, \(\frac{{6 \times 6 \times 8}}{{450}} = \frac{{x \times 5 \times 10}}{{1250}}\) ⇒ x = 16 ∴ The number of burners = 16. |
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