Question
Which of the following IDM measure is considered very
useful and feasible for poor farmers?Solution
The use of resistant varieties is very useful method for poor farmers because it does not require additional cost and it is environment-friendly. Host plant resistance is an important tool to control diseases of major food crops in developing countries, especially wheat, rice, potato, cassava, chickpea, peanuts and cowpea.
If (x –1.3)3+(x–1.4)3+(x–1.5)3 = 3(x–1.3)(x–1.4)(x–1.5), Then x = ?
If ( p = 60 - q - r ) and ( pq + r(q + p) = 1080), then find the value of ( p2 + q2 + r2).

If p = 36 - q - r and pq + r(q + p) = 310, then find the value of (p² + q² + r²).
If [2a + (1/2a)] = 5, then find the value of [4a² + (1/4a²) - 6]
If x + y + z = 30, x² + Y² + z² = 460 and x z = y², then find the value of x z?
In a best-of-two chess match between Player X and Player Y, the probability that Player X wins a game is (5/9), and the probability that Player Y loses ...
(u - 5) 2 + (v + 2) 2 + (w – 4) 2 = 0, then find the value of 4u - v + w.

A shopkeeper marked his article 25% above its cost price and offered a discount of 30%. If cost price of the article is Rs. 560, then find profit or los...