Question
Vishnu travelled equal distances at speeds of 10 km/hr.,
30 km/hr., and 8 km/hr., and took a total of 15.5 minutes to complete. Find the total distance he travelled, in km.Solution
Let the distance be D km According to the question, D/10 + D/30 + D/8 = 15.5/60 (12D + 4D + 15D)/120 = 15.5/60 31D/120 = 15.5/60 D = (15.5 x 120)/(60 x 31) D = 1 km So, the total distance = 1 + 1 + 1 = 3km
Tillering habit is more common is cereals except
Calvin – Benson cycle uses ______ molecules of NADPH, _____ molecules of ATP to assimilate ______ molecule of CO₂
Separation of calf and making independent of its mother for food is known as ___
Polyploidy can be induced by the use of
Soil crusting is a problem in
IBRD (International Bank for Reconstruction and Development) also known as
Tomato damping off is caused due to ____
Proper time of sowing hybrid maize is:
The inflorescence of barley is:
In which vegetable is malic acid commonly present, contributing to its sour taste?
Relevant for Exams:
