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# Aptitude-hindi - Aptitude-Time And Works

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A and B can do a piece of work in 72 days, B&c can do it in 120 days; A&c can do it in 90 days. in what time can A alone do it?

• a
• b
• c
• d
• आपका जवाब गलत है

A can do a piece of work in 80 days.He works at it for 10 days and then B alone finishes the remaining work in 42 days. The together could complete the work in how many days?

• a
• b
• c
• d
• आपका जवाब गलत है

10/80+42/x=1\nx=48 days\nB alone can finish the work in 48 days\nand hence two together can finish the work in \n1/80+1/48=30 days

A can do a piece of work in 15 days &B alone can do it in 10 days. B works at it for 5 days and then leaves. In how many days A alone can finish the remaining work ?

• a
• b
• c
• d
• आपका जवाब गलत है

x/15+5/10=1\nx=7.5 days

A and B together can complete a piece of work in 35 days while A alone can complete the same work in 60 days. in how many days B alone will be able to complete the same work?

• a
• b
• c
• d
• आपका जवाब गलत है

in this question,A and B did the work for 35 days to complete it. A can complete the work in 60 days. \\\\nso, A did /A can +B did /A can=1\\\\n35/60+35/x=1\\\\nx-84 days

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