If Ashok completes four-ninth of the work in 8 hours, how long will he take to complete twice the amount of work at half his efficiency?Question 19Answera.71 hrsb.72 hrsc.80 hrsd.70 hrs
Question
If Ashok completes four-ninth of the work in 8 hours, how long will he take to complete twice the amount of work at half his efficiency?Question 19Answera.71 hrsb.72 hrsc.80 hrsd.70 hrs
Solution
Let's break down the problem step by step:
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Ashok completes 4/9 of the work in 8 hours. This means he would take 8/(4/9) = 18 hours to complete the full work at his normal efficiency.
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If Ashok is working at half his efficiency, he would take twice as long to complete the same amount of work. So, he would take 18 * 2 = 36 hours to complete the work at half his efficiency.
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The question asks how long he would take to complete twice the amount of work at half his efficiency. So, he would take 36 * 2 = 72 hours to complete twice the amount of work at half his efficiency.
So, the answer is (b) 72 hours.
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