Answers What is the mean deviation of x, 2x, x+1 and 3x. If their mean is… What is the mean deviation of x, 2x, x+1 and 3x. If their mean is 2? A. 0.5… Read More
Answers 5, 8, 6 and k occur with frequency 3, 2, 4, and 1 respectively an… 5, 8, 6 and k occur with frequency 3, 2, 4, and 1 respectively an d have a… Read More
Answers The probability of a student passing any examination is 2/3. If the students takes three… The probability of a student passing any examination is 2/3. If the students takes three examination, what is… Read More
Answers The pie chart above represents 400 fruits on display n a grocery store. How many… The pie chart above represents 400 fruits on display n a grocery store. How many apples are in… Read More
Answers No. of Days 1 2 3 4 5 6 No. of students 20 2x 60… No. of Days 1 2 3 4 5 6 No. of students 20 2x 60 40 x 50… Read More
Answers The distance travelled by a particle from a fixed point is given as s =… The distance travelled by a particle from a fixed point is given as s = (t3 – t2… Read More
Answers If s = (2 + 3t)(5t – 4), find ds/dt when t = 4/5 secs If s = (2 + 3t)(5t – 4), find ds/dt when t = 4/5 secs A. 0 units… Read More
Answers A cliff on the bank of a river is 300 meter high. if the angle… A cliff on the bank of a river is 300 meter high. if the angle of depression of… Read More
Answers Find the value of sin 45o – cos 30o Find the value of sin 45o – cos 30o A. (frac{2+sqrt{3}}{4}) B. (frac{sqrt{2}+sqrt{3}}{4}) C. (frac{sqrt{2}+sqrt{3}}{2}) D. (frac{sqrt{2}-sqrt{3}}{2}) Correct… Read More