The product of two fractions is 20. If one of the fractions is 14, then the other fraction is:
40/1
20/1
60/1
80/1
Let the other fraction be x Then, x×14=20 x=20×4=80 =801
Find the mean of the following data, using assumed-mean method: Marks100−120120−140140−160160−180180−200Number of students102030155
Draw the Ogive for the following data:
Daily earnings (in ₹)
No. of persons
80-100
6
100-120
8
120-140
10
140-160
4
160-180
180-200
Write the class size of 100-120,120-140,140-160