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Ten fabrics of different colors are displayed on ten racks in a cloth store. The racks are placed one after another and numbered consecutively from one to ten. Each rack contains fabric of a single color. One fabric is green , two fabrics are brown , three fabrics are purple and remaining four fabrics are red. If a purple fabric is on rack two and red fabrics are on racks three and four , the green fabric must be on which of the following racks?
Which of the following are Fabrics that may contain polyester? Polycot Polywood Terrycot
If the four red fabrics are on four consecutive racks , the green fabric and one of the brown fabrics could be on which of the following racks respectively?
A science teacher asks class VII students to conduct a survey in their neighbourhood and collect information on types of fabrics used for their clothes. He then asks students to prepare a report on the basis of quality, price, durability and biodegradability of the fabrics used. This activity best promotes the assessment of which of the following? A. Observation skill B. Classification ability C. Critical thinking D. Communication E. Value system F. Gender sensitivity
Which of the following statements is/are correct?
1. Felt is made from wool or mixed wool. Matt is dampened and heated and pressure applied to it the wool fibres entangled and form dense material felt.
2. Knitted fabrics can be stretched more than woven fabrics, so can used forrests under weavers socks.
A tailor had to cut a certain number of shirts from rolls of full-length fabrics. He cut each roll into 11 pieces of equal length. He cut the rolls of fabrics at a rate of 50 pieces per minute. How many rolls of fabric would he be able to cut in 25 minutes?
The following question has two statements. Study the question and the statements and decide which of the statement(s) is/are necessary to answer the question. Each of the 20 racks of garment shop contains either only shirts, only jeans, or a mixture of shirts and jeans, how many racks contain only shirts? Statement I: 18 racks contain jeans and 14 racks contain shirts. Statement II: 6 racks contain jeans only. 
Which of the following statements is/are correct?
1. Vicuna is one of the softest fibres in the world.
2. Vicuna fibre can be obtained only by killing the animals.
3. Chrysolite is the asbestos, most often found in textile, because of several properties making it specially adaptable to fabrics.
4. Yarn of asbestos may be plain, they may have a core of wire glass or nylon filament that may be piles or cords.
Select the correct answer
Consider the following statements.
1. All valid arguments contain only true premises and a true conclusion.
2. Some valid arguments contain only false propositions - false premises and a true conclusion.
3. All valid arguments contain only false propositions all premises are false, conclusion is false as well.
Which of the above statements is correct?
Consider the following statements about hydrocarbons. i. Alkanes are saturated hydrocarbons that contain single bonds. ii. Alkynes are unsaturated hydrocarbons that contain one or more double bonds.  iii. Alkenes are Unsaturated hydrocarbons that contain one or more triple bonds.