Question
Which of the following is an example of an active
electronic component?Solution
Operational amplifier
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40 tailors can stitch a batch of dresses in 30 days. If 20 tailors started the job and after 15 days ‘u’ more tailors joined them such that the rema...
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A contractor planned to complete a project in 5 days by employing ‘a’ workers. But every day exactly 15 workers were absent. As a result, the work g...
Arjun and Sameer can complete a job in 20 days and 25 days respectively. When Arjun, Sameer, and Nikhil work together, they finish it in
M, N and O can complete a task in ‘t’, 100, and ‘t + 20’ days respectively. All three started together, but after 15 days, N dropped out. Then, ...
(x + 7) workers finish 60% of a job in 9 days working 4 hours/day. The remaining work is done by (x + 3) workers in 12 days working 3 hours/day. Find x.
A work can be completed by ‘A’ and ‘B’, alone in 10 days and 12 days, respectively. Find the number of days taken by ‘C’ to complete the sam...
A piece of work consists of 360 identical units. A can do (x + 4) units per day and B can do (x − 2) units per day. They work together for 9 days and ...
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