Question
Synthetic pyrethroids should not be used for the
control of rice insect pest because it increase the population ofSolution
Two species of planthopper infest rice. These are the brown planthopper (BPH), Nilaparvata lugens (Stal); and the whitebacked planthopper (WBPH), Sogatella furcifera (Horvath).
If sec θ + tan θ = x, what is the value of sec θ in terms of x?
If tanx+secx=3, then the number of real solutions in [0,3π] is:
Income of A is twice the income of B. B and A spend 55% and 65% respectively of their incomes. Find the savings of A, if B saves Rs. 18000 in a month.
The shortest distance between skew lines can be found using:
A boat can travel at a speed of 15 km/h in still water. If the speed of the current is 3 km/h, how long will it take to travel 24 km upstream?
Two individuals, 'Arjun' and 'Bheem', are partners. The proportion of 'Arjun's spending compared to 'Bheem's is 4:5. Meanwhile, the savings ratio of 'Ar...
In a trapezium, the lengths of the two parallel sides are 24 cm and 18 cm, and the distance between them is 16 cm. Find the length of the midsegment (li...
? = (3.89 × 64.83 ÷ 12.96) 1.98 + 15.08% of 499.81
A rectangular garden is 20 m long and 15 m wide. If a path of width 2 m is built around the garden, what is the area of the path?
