`(-80)+0+(-90)=` ________

The market value of a share is Rs. 90, itsface value is Rs. 80, and the dividend is 8%. The rate of return is ___________.

Line segments A B a n d C D intersect at O such that A C D Bdot If /_C A B=45^0a n d /_C D B=55^0, then /_B O D= 100^0 (b) 80^0 (c) 90^0 (d) 135^0

The initail and final position vectors for a particle are respectively , ( - 3.0 m)hati + (2.0 m) hat j + (8.0 m ) hatk and (9.0 m)hati + (2.0 m )hatj + (- 8.0 m )hat k . The displacement of the particle is

A and B are two point charges placed (0,0) and (6,0)cm .The electric potential due to given charges is zero at (8,0)cm .The electric field due to given charges is zero at a) (3,0)cm b) (9,0)cm c) (12,0)cm d) (16,0)cm

Solve the following. 2550 -[510 - {270- (90 -80 + 70)}]

The median of following frequency distribution is {:(,"Class",,fi),(,60-70,,5),(,70-80,,15),(,80-90,,20),(,90-100,,30),(,100-110,,20),(,110-120,,8):}

Calculate the median from the following data: Marks: 0-10 10-30 30-60 60-80 80-90 No. of Students 5 15 30 8 2

Find the median of the following data: class : 0-10 , frequency :5 , 10-20 , 3 , 20-30 , 4 , 30-40 , 3 , 40-50 , 3, 50-60 , 4, 60-70 , 7 , 70-80 , 9 , 80-90 , 7 , 90-100 , 8 ,

Evaluate the equation ;- cos 90^(@) sin 0^(@) - sin 0^(@) cos 90^(@) .

Calculate the mean, variance and standard deviation for the following distribution:Class 30-40 40-50 50-60 60-70 70-80 80-90 90-100Frequency 3 7 12 15 8 3 2