The radius of a sphere and hemisphere are same. The ratio of their total surface areas is
3 : 1
2 : 1
3 : 2
3 : 2
D.
3 : 2
Total surface area of sphere =
Total surface area of hemisphere = Required ratio =
= 4 : 3
Two equal arcs of the two circles subtend angle of and
at the centre. The ratio of the radii of the two circles is
Study the following bar graph carefully and answer the given questions.
The following bar graph shows the yield per acre of six countries in South Asia.
The yield per acre of India is what percent more than that of Pakistan?
25%
50%
75%
75%
Study the following bar graph carefully and answer the given questions.
The following bar graph shows the yield per acre of six countries in South Asia.
If the yield per acre is arranged in ascending order, then what is the difference between the yield per acre of first three countries and last three countries?
168
172
182
182
Study the following bar graph carefully and answer the given questions.
The following bar graph shows the yield per acre of six countries in South Asia.
The yield per acre produced by Bangladesh is what percent of the total number of yield per acre produced by all countries?
14%
13.5%
14.8%
14.8%