Question 4
Measures of the two angles between hour and minute hands of a clock at 9 0' clock are
a) ${60}^{\circ },{300}^{\circ }$
b) ${270}^{\circ },{90}^{\circ }$
c) ${75}^{\circ },{285}^{\circ }$
d) ${30}^{\circ },{330}^{\circ }$

Question 4
Measures of the two angles between hour and minute hands of a clock at 9 0' clock are
a) ${60}^{\circ },{300}^{\circ }$
b) ${270}^{\circ },{90}^{\circ }$
c) ${75}^{\circ },{285}^{\circ }$
d) ${30}^{\circ },{330}^{\circ }$

Question 2

Two clocks A and B are shown in the Figure. Clock A has an hour and a minute hand, whereas clock B has an hour hand, minute hand as well as a second hand. Which of the following statement is correct for these clocks?

(a) Time interval of 30 seconds can be measured by clock A

(b) Time interval of 30 seconds cannot be measured by clock B

(c) Time interval of 5 minutes can be measured by both A and B

(d) Time interval of 4 minutes 10 seconds can be measured by clock A

The angle between the minute and hour hands of a clock at 8:30 is