I'll explain the first answer and for the rest of the answers I will directly write them..

For the first question 10 past eleven, the answer will be 85 degrees.

• When it's 11 in the clock, the angle between the two hands of the clock will be 30°.
• Remember this - For each 1- min the hour arm moves 0.5° and the min. arm moves 6° .
• So using this statement, the different for every 1 minute change will be 5.5°
• So in 10- minutes the minute hand will have moved (5.5 x 10)= 55° from the hour hand.
• Therefore the angle between the hour hand and the minute hand will be (30° + 55)= 85° .

So using similar logics answers for other questions are as follows -

1. twenty past 7 =100°
2. thirty-five past 1= 162.5°
3. quater to 6= 97°
4. 2.20= 50°
5. 10 :10=115°

Thank you.