alleryજો કોઈ કાર્ય માટે 20 માનવ-કલાકની જરૂર હોય, તો 2 કામદારોની ટીમને કેટલા કલાક લાગશે?
A10 કલાક
B20 કલાક
C40 કલાક
D15 કલાક
Answer & Solution
Correct answer: A. 10 કલાક
20 માનવ-કલાકને 2 ઉપલબ્ધ કામદારો વડે ભાગતાં 10 કલાકનું કામ મળે છે.
Keep practising Time and Work
Browse all Time and Work questions for RRB NTPC, or explore more Quantitative Aptitude topics.
Related questions
What labor metric denotes the amount of work done by an average worker in a day?How is task time found from man-hours and worker count?A takes 12 days and B takes 24 days. A leaves 3 days before the work ends. Total time wasA does a job in 16 days, B in 8 days. A works 4 days alone, then B joins. Total time from A alone does a job in 9 days and B alone in 18 days. They earn Rs 900 together. A's share Sita does a job in 30 days. Sita and Tara together do it in 20 days. Tara alone needsA pipe alone fills a tank in 15 minutes; with a second pipe it takes 6 minutes. The secondTen men working 8 hours a day build a wall in 18 days. Twelve men at 6 hours a day need