if the speed of a boat in still water is u km/h & the speed of the streams of v km/h than- speed towards downstream- Speed towards up stream- if the speed of boat in downstream u km/h and in upstream v km/h than speed in still water- rate or speed of stream=
If A can do a piece of work in n days then in 1 day’s work If A’s day’s work is 1/n than A can finish the work in n days. Pipes & cisterns Inlet- a pipe connected with a tank/cistern that fill it is known as an inlet. Outlet- a pipe connected with a … Read more
Alligation- the rate to find the ratio in which two or more ingredients at the given price.must be mixed to produce a mixer of a desired price. Mean price- the cost price of a unit remobilty of the mix are is called mean price. Rule of allegation cheaper quantity: dearer quantity= (d-m): (m-c) A container … Read more
