Question

12.How much does a watch gain per day, if its hands coincide every 64 minutes? (A) 32×8/11 min (B) 36×5/11min (C) 90 min (D) 96 min​

Answer 1

Answer- (A)32×8/11minute

Here M = 64. The clock gains or losses in a day by

=

(

720

11

−

M

)

(

60

×

24

M

)

=

(

720

11

−

64

)

(

60

×

24

64

)

=

16

11

(

60

×

3

8

)

=

2

11

(

60

×

3

)

=

360

11

=

32

8

11

minutes

Step-by-step explanation:

i hope you understand