NIELIT 2020 : Revision Quiz 33

A can do 6/7 of a work in 18 days and B can do the 2/3 of the same work in 12 days. If C is  efficient of the combined efficiency of A and B then find out in how many days the work will be completed by them all working together?

A man can walk uphill at the rate of 2.5 km/h and downhill at the rate of 3.25 km/h. If the total time required walking a certain distance up the hill and return to the starting position is 4 h 36 min, what is the distance he walked up the hill?

If by selling 125 shirts, the cost price of 105 shirts is realized, the profit/loss percent is

A woman buys a purse for 10% less than its marked price and sells it for 10% more than its marked price. Her gain or loss percent is

If a random variable X has the following probability distribution:

then value of ‘a’ is

A person has undertaken a construction job. The probabilities are 0.65 that there will be strike, 0.80 that the construction job will be completed on time if there is no strike, and 0.32 that the construction job will be completed on time if there is a strike, the probability that the construction job will be completed on time is

A mechanism or technology used in Ethernet by which two connected devices choose common transmission parameters such as speed, duplex mode and flow control is called

Which of the following system does not provision storage to most users?

Which of the following is an interrupt according to temporal relationship with system clock ?

Establishing the priority of simultaneous interrupt by software means is known as