A contractor undertook to make 20 km of roadway in 48 weeks. In 28 weeks, 8 km was completed by 120 men working 12 hours a day. The men then agreed to work 3 hour a day overtime and some women were engaged to assist them, the work was finished in the stipulated time. How many women were employed, if the work of 8 men is equal to that of 5 women.
8M = 5W So M/W = 5/8 By M1D1H1/W1 = M2D2H2/W2 (120M × 12 × 28)/8 = [(120M + xW) × 15 × 20]/12 (120×5 × 12 × 28)/8 = [(120×5 + x×8) × 15 × 20]/12 28×3×12 = 600 +8x 8x = 1008 - 600 = 408 So x = 408/8 = 51
Device that converts digital signals to analog signals at the start of long-distance transmissions is
What process involves converting a message into a secret code to ensure confidentiality?
Which of the following function(s) is/are not present in the number keypad of keyboard?
Which of the following is/are not an advantage of Android?
Where does the Sleep mode save any open documents and programs?
Real time clock is switched on even when the computer is turned off. In which case is this true?
In the context of cloud computing, what does the acronym "IaaS" stand for?
Which of the following is a characteristic of a hybrid cloud computing model?
India's first supercomputer?
The basic units in high level abstraction that describe the model of a computer do not comprise of ____________ among the following.