Most of the metals are grey in colour; which one of the following is yellow?
Zinc
Lead
Gold
Silver
The elements of sets A , B and C are all colours as follows:
A = { Red , Orange , Yellow , Brown } ,
B = { Blue , Yellow , Green , Brown } ,
C = { Black , Brown , White , Grey }
Then, A U B U C is
Four identical metal cans are coloured with green, yellow, black and white colours. They are placed under the Sun for one hour. Which of the following coloured metal can shows the greatest rise in temperature?