P-ब्लॉक के तत्व | Class 11 NCERT रसायन विज्ञान | 1 PM Class By Shilpa Ma'am | L10 | Hindi Medium

12 PM Special Class | Class 11 - STRUCTURE OF ATOM || BOHR MODEL By Yakshu Ma'am

Class 11 के बाद क्या ? Class 12 Hindi Medium की पढ़ाई साल के शुरू से कैसे करें ?

A man starts running from point P at 11:00 a.m. with a speed of 10 km/hr. He runs for 2 hourse and then takes a 1 hour rest. He continues this till he is caught by another man who starts at 2:00 pm from point P and runs non- stop at a speed of 15 km/hr towards the first man. At what time (in pm) will the first man be caught?

A machine P can print one lakh books in 8 hours, machine Q can print the same number of books in 10 hours while machine R can print them in 12 hours. All the machines are started at 9 a.m. while machine P is closed at 11 a.m. and the remaining two machines complete the work. Approximately at what time will the work be finished? a. 11 : 30 a.m. b. 12 noon c. 12 : 30 p.m. d. 1 p.m.

A class starts at 10 a.m. and lasts till 1.27 p.m. Four periods are held during this interval. After every period, 5 minutes are given free to the students. The exact duration of each period is (a) 42 minutes (b) 48 minutes (c) 51 minutes (d) 53 minutes

A man cycles with a speed of 10 kmph and reaches his office at 1 p.m. However, when he cycles with a speed of 15 kmph, he reaches his office at 11 a.m. At what speed should he cycle so that he reaches his office at 12 noon ?