Mathematics
The given figure shows a quadrilateral ABCD in which AB is parallel to CD.
If OA = 3x - 19, OB = x - 3, OC = x - 5 and OD = 3, find the value of x.
Related Questions
Calculate the mean, by step-deviation method, for the frequency distribution given below :
Class-interval Frequency 0-5 6 5-10 14 10-15 30 15-20 48 20-25 32 25-30 16 30-35 10 35-40 4 A trader buys x identical articles for ₹ 600. If the cost per article were ₹ 5 more, the number of articles that can be bought for ₹ 600 would be four less. Find the value of x.
The marks obtained by 120 students in a Mathematics test are given below :
Marks No. of students 0-10 5 10-20 9 20-30 16 30-40 22 40-50 26 50-60 18 60-70 11 70-80 6 80-90 4 90-100 3 Using the informations, given above draw an ogive on a graph sheet. Take a suitable scale for your ogive. Use the ogive to drawn to estimate :
(i) the median marks.
(ii) the number of students who obtained more than 75% marks in the test.
(iii) the number of students who did not pass in the test if the pass percentage was 40.