Find the missing number.
?˸4∷40˸32
Given:
Here one extreme is missing
Oneextreme=Productofmeansotherextreme
=4×4032
=5
Hence, the missing number is 5.
Find the missing numbers that make the fractions equivalent.
2432=□4
?33=3224
The mean of the following frequency table is 50. But the frequencies f1 and f2 in classes 20-40 and 60-80 are missing. Find the missing frequencies.
Class
0-20
20-40
40-60
60-80
80-100
Total
Frequency
17
f1
32
f2
19
100