Question
A circular park is having the circumference of 110m. A
uniform path of width 3.5m has been made around the park. Find the area of this path?Solution
Radius of the park (r): 2×22/7×r = 110 => r = 35/2 Radius of park including the path = 35/2 + 7/2 = 42/2 = 21 Area of this path = 22/7 × (212 - 17.52) = 423.5
Which one of the following lymphoid organ is large at birth but reduces with age ?Â
- Which hormone is secreted when blood sugar levels are low?
Match List-I with List-II :
Choose the correct answe...
Plants are divided into ______ groups.
Which antibodies are present in individuals with blood group AB?
Measles is caused by ______.
The term ‘GEAC’ stands for:
Which plants have root nodules?
Which disease is known as the 'silent killer' because it often has no symptoms but can cause heart attack or stroke?
DPT vaccine does not give protection to a child from