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Probability of drug companies obtainining permission for sale og a drg within 90 days is .75. If a sample of 5 compnanies selected what is the probability that none of them obtaine permission within 90 days.

Consider the curve defined by y4= y2- x2. At what ordered pair (x,y) is the line 4x√3-4y=1 tangent to the curve y4= y2- x2?

Of two-car families in a small city, 88% remain two-car families in the following year and 12% become one-car families in the following year. Of one-car families, 72% remain one-car families and 28% become two-car families. Suppose these trends continue f...

The half life of radium is 3.82 days.In what time will the activity decay to 1/16 of its original value.

The half life of Uranium-238 against alpha decay is 4.5*10^9 years.Calculate the number of disintegrations taking place in 1gm of the substance.

A car travel from a to b at 60km and return to a at 90km. What is the average velocity and average speed ?

A horizontal force F is exerted on a 20-kg box to slide it up a 30 degrees incline. The friction force retarding the motion is 80 N.How large must F be if the acceleration of the moving box is to (a)zero and (b) 0.75m/s2?

PV of 50000 today @ 5% is to be calculated here. Answer is $11,568.87

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Answer:6

Total Earnings of three boys = 235.50 No.of boys = 3.. Average: Sum of all no/ Total no . of value = 235.5 = 2355/10 = 2355/10 ÷ 3 = 2355×1/10×3 We know that , 2355÷3=785 So, it is 785×1/10×1 = 785/10 = 78.5 So the average amount = ₹ 78.5