Question
A person can complete a work in 15 days, and another
person can complete the same work in 20 days. They work together for 5 days, and then the first person leaves. How many more days will it take for the second person to complete the remaining work?Solution
Work done by the first person in 1 day = 1/15. Work done by the second person in 1 day = 1/20. Together, in 1 day, they can complete = 1/15 + 1/20 = 4/60 + 3/60 = 7/60 of the work. In 5 days, they will complete = 5 × 7/60 = 35/60 = 7/12 of the work. Remaining work = 1 - 7/12 = 5/12. The second person alone will complete 1/20 of the work per day. Time required for the second person to complete the remaining work = (5/12) ÷ (1/20) = 5/12 × 20 = 8.33 days. Correct answer: d. 8.3
What technological intervention is not mentioned in the initiatives undertaken by the Department of Horticulture & Food Processing in Uttarakhand?
Seed work board is required for?
Khapra beetle is pest of
The Apex organization of marketing Cooperative agricultural produce in
India is
Dead spots on the leaf surface, not on the leaf margins is a deficiency symptom of:
Agrobacterium is widely used for gene transfer because
A quality of angiosperms without any exception is
Which is high Salt tolerant crop?
Which is not the subject matter of Agricultural Economics?
A plant showing yellowing between the veins (interveinal chlorosis) on older leaves is most likely deficient in which essential nutrient?
