Question
Carbamate and organophosphate insecticide act on which
part of insects?Solution
Carbamate and organophosphate insecticides act on the nervous system of insects by inhibiting the enzyme acetylcholinesterase. This leads to the accumulation of acetylcholine, causing continuous nerve impulses, paralysis, and eventually the death of the insect.
A Scooty is currently traveling at a speed of (2a – 90) km/hr, and a Bus is moving at a speed of (b + 30) km/hr. If the Scooty's speed were equal to t...
The speed of ‘A’ and ‘B’ is 60 km/hr and 30 km/hr, respectively. If the distance covered by ‘A’ in ‘x’ h...
If a car runs at 36 km/hr, it reaches its destination late by 15 minutes but if runs at 45 km/hr it is late by 9 minutes. What is the correct time for t...
- In a 30 km race, M, N, and O are running at uniform speed. If ‘M’ beats ‘N’ by 6 km, and ‘N’ beats ‘O’ by 4 km, then by how many metres doe...
A bus covers a certain distance without stopping at an average speed of 50 km/h. But when it covers the distance intermittently. So its average speed is...
Two cyclists P and Q are at towns A and B. P sets off toward B at (x – 8) km/h. Two hours later, Q starts toward A at (x + 8) km/h. They meet at the e...
- A woman drove for 5 hours at a constant speed of 60 km/h and then drove another 2 hours at a constant speed of 90 km/h. Find her average speed for the whol...
Speed of the stream is 15 km/h and speed of boat in still water is 24 km/h. A boat takes a total of 38 hours for travelling downstream from Point M to P...
A girl walks to her college at (5/6) of her normal speed and reaches 25 minutes late. Find how long she normally takes to reach college.
A, B, and C run around a Circular track starting from the same point simultaneously and in the same direction at 12 km/h, 24 km/h, and 36 km/h respectiv...
