Start learning 50% faster. Sign in now
Lesser grain borer/Hooded grain borer/paddy borer beetle: Rhyzopertha dominica Host range: Paddy, rice, wheat, maize. Symptoms of damage • Grubs and adults cause damage and are voracious feeders. • Adults reduce the grain kernels to mere frass. • Grubs eat their way into the grain or feed on the grain dust and are capable of attacking grain externally.
A person from the top of a hill observes a vehicle moving towards him at a uniform speed. It takes 10 minutes for the angle of depression to change from...
A, B and C can do a job working alone in 50, 75 and 20 days respectively. They all work together for 4 days, then C quits. How many days will A and B ta...
A and B can do a certain work in 6 hours, and A, B and C together take 4 hours to do the same. How long will it take for C alone to accomplish the task?
A started a work such that he can complete the whole work in 30 hours. After working for 10 hours, he worked with the rate such that the whole work can ...
What % of a day is 30 minutes ?
Pipes A and B can fill an empty tank in 6 and 8 hours respectively, while pipe C can empty the full tank in 10 hours. If all three pipes are opened toge...
A mobile plan costs Rs.32 for 6 minutes. What is the approximate cost, rupees, for 4 minutes?
An elephant can do a work as fast as two horses ‘A’ and ‘B’ can do it by working together. If horse ‘A’ alone can co...
What is the angle traced by the hour hand in 23 minutes?
A trip from Mumbai to Pune takes 4 hours 30 minutes at a speed of 60 km/hr. How long (in hours) will it take to complete, if the speed is 15m/sec?