Question
A seller marked the price of an item at Rs. 4,000. The
seller gave successive discounts of (z + 4)% and (z - 4)% to a customer. If the customer paid Rs. 3,328 for the item, then find the value of 'z'.Solution
ATQ; SP of the item = 4000 × (1 - (z + 4)/100) × (1 - (z - 4)/100) = 3328 or, {(100 - z - 4)/100} × {(100 - z + 4)/100} = 3328/4000 or, (96 - z) × (104 - z) = (3328/4000) × 100 × 100 or, 96 × 104 - 96z - 104z + z² = 8308 or, z² - 200z + 9994 - 8308 = 0 or, z² - 200z + 1686 = 0 or, z² - 10z - 190z + 1686 = 0 or, z × (z - 10) - 168 × (z - 10) = 18 or, (z - 10) × (z - 168) = 18 So, z = 10 or z = 168 But, z = 168 is not possible because the discount cannot be more than 100%. Therefore, z = 10
Which cooperative bank acts as a link between state cooperative bank and primary agricultural cooperative Society?
The value of the variable which occurs most frequently from a set of population isÂ
The process of loss of water from plant is
The index that considers the total cropped area cultivated relative to the net sown area in order to measure agricultural land use intensity is known as:
Among following options,The term Land races refers to , :
Agricultural and Processed Food Products Export Development Authority (APEDA) has its headquarter at
Yellow leaf mosaic of blend crops is transmitted by:
Which of these marketing systems was prevalent in the ancient times?
Scientific name of soybean is:
The yield of forest is regulated on the basis of volume by using following:
Relevant for Exams:
