Subject
Quantitative Aptitude
Topic
Unitary Method
A signed a contract for building a road of 1920 meters long within 120 days. He employed 160 workers for this task. But after 24 days he found that only 1/8 of the task has been finished. If A want to finish the road in time how many additional workers he has to employee ?
A signed a contract for building a road of 1920 meters long within 120 days. He employed 160 workers for this task. But after 24 days he found that only 1/8 of the task has been finished. If A want to finish the road in time how many additional workers he has to employee ?
ক)
180খ)
120গ)
160ঘ)
280Explanation
Solution: Days remaining = 120 - 24 = 96 Work done = 1920/8 = 240 meter and work remaining = 1920 - 240 = 1680 meter 240 meter is done in 24 days by = 160 men 1 " " " " 1 " " = (160 24) / 240 men. 1680 " " " " 96 " " = (160 24 1680) / 240 96 men = 280 men Additional men need = 280 - 160 = 120 Men.Related questions
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