Question
The cost of diamond varies directly as the square of its
weight. A diamond broke into four pieces with weights in the ratio 1: 4: 5: 6. if the loss in the total value of the diamond was Rs. 89,000. The price of the original diamond was?Solution
Let the weight of the pieces of diamond be x, 4x, 5x, 6x Total weight of diamond = x + 4x + 5x + 6x = 16x Price prop; (weight) 2 = Price = k(weight) 2 ; where, K is constant Original price = k(16x) 2 Price of pieces = (kx 2 + 16kx 2 + 25kx 2 + 36kx 2 ) = 78kx 2 Loss in price = 256kx 2 78kx 2 = 178kx 2 which is given as 89,000 178kx 2 = 89000 kx 2 = 500 Original price = 256kx 2 = 256 x 500 = 128000
 The root nodule of legumes contain a pink pigment which has affinity for oxygen is
Which soils are known as self-tilled soils
The term “operational holding” refers to
 The larger the soil aggregates, the greater is the amount of ……………………….pores.
Toxicity of which element leads to the unavailability of iron and zinc
Under Soil Health Card Scheme, what is the cycle of testing of soil for irrigated area and area from which single sample is to be drawn?
Soil is a natural body composed of mineral and organic costituents, having definite genesis and a distinct nature of its own. Who amongst the following ...
How many seasons are there for seed certification in India?
Which term describes the resistance of soil at different moisture levels to mechanical stresses or manipulations?
Which of the following is acid tolerant crop?
