In telecommunications and signal processing, frequency modulation (FM) conveys information over a carrier wave by varying its instantaneous frequency. This contrasts with amplitude modulation, in which the amplitude of the carrier is varied while its frequency remains constant. In analogue television, the sound portion of a broadcast is invariably modulated separately from the video.
Three machines P,Q and R were hired by a company for a month. Machine P runs 18 hours for 15 days, machine Q runs 20 hours for 18 days and machine R run...
‘A’ alone can do some work in 22 days. ‘B’ and ‘C’ together can do the same work in 12 days. If ‘B’ is half as efficient as ‘A’, the...
A man, a woman and a boy can do a work in 3, 2, 6 days respectively. How many children were required with 1 man and 1 woman to complete the same work in...
A, B, and C together can do a piece of work in 28 days, whereas C alone can do the same work in 42 days. How long will A and B take together to finish it?
Vijay can do a piece of work in 16 days and Sanjay can do the same work in 24 days. If Vijay works for 6 days and got Rs. 2700, and the remaining work w...
The day efficiency of Rajeev is equal to the one-day efficiency of Divya and Vivek together. Divya is 25% more efficient than Vivek and starts with 20% ...
If one child has half the work efficiency of an adult, determine the duration required for 8 children to construct a wall, which is 60% as large as the ...
Sudhanshu completes`1/3` of work in 12 days, then he completes the remaining work with the help of Neeraj in 4 days. The time required for Neera...
A can complete 5/6 of a work in 15 days and B can complete 2/3 of work in 8 days. In how many days both A and B together can complete the work?
A can do a job alone in 66 days, B can do it alone in 55 days, while A, B, and C working together can complete the job in 11 days. In how many days can ...
