In the figure above,a+b+cs+t+u=?
12
13
23
1
A reservoir has two pipes, A and B. A can fill the reservoir 5 hours faster than B. If both together fill the reservoir in 6 hours, the reservoir will be filled by A alone in-
The tax on a commodity is diminished by 10% and its consumption increases by 10%. Find the effects on revenue.
What is the average of odd numbers from 1 to 40?