State 'T' for true and 'F' for false.
(i) Number 0 has both rotational and line of symmetry.
(ii) A regular polygon of n sides has 2n lines of symmetry.
(iii) A square has four lines of symmetry and rotational symmetry of order 2.
(iv) A circle has finite number of lines of symmetry.
Shivam’s flight to Canada departs at 11 : 15 p.m. He has to check in at the airport terminal 1 hour 45 minutes earlier. The journey to the terminal takes 50 minutes. He needs 30 minutes to get dressed and 15 minutes to have his dinner. At what time should he start preparing for his trip?
A6 : 55 p.m.
B8 : 05 p.m.
C7 : 55 p.m.
D8 : 25 p.m.
Time to have dinner = 15 minutes Time to get dressed = 30 minutes Time to reach terminal = 50 minutes Time to check in(earlier) = 1 hr 45 minutes Add = 1 hr 140 minutes = 3 hours 20 minutes So, 11 : 15 â 3 hours 20 minutes = 7 : 55 p.m. So, the answer is - C. 7 : 55 p.m.
Tina bought these pencils. Each pencil cost Rs 7. If she had Rs 672, then how many pencils she bought from this money ?