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

Two equal arcs of the two circles subtend angle of  and  at the centre. The ratio of the radii of the two circles is

72.

In , then find angle B.

• 
• 
• 
• 

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%