To put the tile on the floor of a square room at rate of Rs 30 per sq. m is Rs 48000. If the total cost of colouring the four walls at rate of Rs 20 per sq. m is 256000, find the dimension of room.

look you need to multiply

Step-by-step explanation:

multiply

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0

the answer is a. 72. but i cant answer with less than 20 characters so here's some random text talking about it.