Question
Two cars start from a place with a speed of 65 km/hr at
an interval of 15 minutes. A man coming from the opposite direction towards the place meets the cars at an interval of 13 minutes. What is the speed of the man?Solution
Distance covered in 15 minutes at 65 km/hr = 65 x (15/60) Distance covered in 13 minutes at (65 + x) km/hr = (13/60) x (65 + x) Now, Distance covered in 15 minutes at 65 km/hr = Distance covered in 13 minutes at (65 + x) km/hr ⇒ 65 x (15/60) = (13/60) x (65 + x) ⇒ 65 x 15 = 845 + 13x ⇒ 975 = 845 + 13x ⇒ 13x = 975 - 845 = 130 ⇒ x = 10 km/hr
Whiptail in cauliflower is caused due toÂ
Which of the following is a major greenhouse gas released by agricultural activities?
Botanical name of Sandal is ____
Phytochrome is synthesized from
Foliar diagnosis of nutrient status developed for sugarcane crop is known by the nameÂ
Which among the following refers to the Seed priming  :
Which is an example of modified stem?
What is the correct sequence of steps in the extension programme planning process (SOTER model)?
Microfilaments are formed of
Which weathering agent is biological in nature ?