Question
Two cars start from a place with a speed of 60 km/hr at
an interval of 15 minutes. What is the speed of a man coming from the opposite direction towards the place if he meets the cars at an interval of 12 minutes?Solution
Distance covered in 15 minutes at 60 km/hr = 60 x (15/60) Distance covered in 12 minutes at (60 + x) km/hr = (12/60) x (60 + x) Now, Distance covered in 15 minutes at 60 km/hr = Distance covered in 12 minutes at (60 + x) km/hr ⇒ 60 x (15/60) = (12/60) x (60 + x) ⇒ 60 x 15 = 720 + 12x ⇒ 900 = 720 + 12x ⇒ 12x = 900 - 720 = 180 ⇒ x = 15 km/hr
How many spices are under the purview of spices board of India
What is the full form of 'NOTS'?
Who is responsible for conducting a survey of the state's food manufacturing and processing facilities?
There has to be atleast ……………. designated officer for each district of a state.
Milk proteins are rich inÂ
what is the term used for the process of conversion of carbohydrates into lactate by the series of catalyst on breaking down of sugar into simpler compo...
Fat contribute about calories per gramÂ
What is the normal cut-off for BMI for Asian-Indian?
What is the edible part of pomegranate, and under which morphological category does it fall?
One example of non-perishable food is: