The length of a rectangle has increased in the ratio 3:2 and the width reduced in the ratio 4:5 .If the original length and width were 18cm and 15cm respectively. Find the ratio of change in its area

i used to know how to do this in 7th but i forget easily

step-by-step explanation:

345

step-by-step explanation:

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %