Take a clock, move the hour hand and check the angle with your RA tester
(i) from 12 to 2 (ii) from 3 to 4
(iii) from 5 to 9
(iv) from 8 to 11

Subtract (i) 9 from 4 (ii) 9 from -4 (iii) -8 from 3

Subtract: (i) 4 from 9 (ii) -4 from 7 (iii) 3 from -8 (iv) -9 from -5

Subtract: (i) 5x from 9x (ii) -7x from 5x (iii) -8a from -3a

What fraction of a clockwise revolution does the hour hand of a clock turn through, when it goes from(a) 3 to 9 (b) 4 to 7 (c) 7 to 10(d) 12 to 9 (e) 1 to 10 (f) 6 to 3

Subtract : (i) -5y^2 from y^2 (ii) 6xy from (iii) (a-b) from (a+b)

Subtract: (i) -4x from 3y\ (ii) -2x\ from -5y

Find the number of right angles turned through by the hour hand of a clock when it goes from(a) 3 to 6 (b) 2 to 8 (c) 5 to 11(d) 10 to 1 (e) 12 to 9 (f) 12 to 6

Subtract: (i) 3/5 from 7/10 , (ii) -3/5 from -5/6

Where will the hour hand of a clock stop if it starts(a) from 6 and turns through 1 right angle?(b) from 8 and turns through 2 right angles?(c) from 10 and turns through 3 right angles?(d) from 7 and turns through 2 straight angles?

Given, A = {2,3,4}, B={2,5,6,7} . Construct an example of each of the following (i) an injective mapping from A to B. (ii) a mapping from A to B which is not injective. (iii) a mapping from B to A.