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According to the question Let the cost price of each book, each diary, and each folder be Rs. ‘z’ Selling price of each book = (500/10) = Rs. 50 Selling price of each diary = (1200/15) = Rs. 80 According to the question, (50–z)/z×100 = e…… (I) Also, (80–z)/z×100 = f…… (II) Use the given relationship [f = 3e] Dividing equation (I) by (II), we get 
3(50 − z)=80 − z 150 − 3z = 80 − z 150 − 80 = 3z − z 70 = 2z z = (70/2) = 35 Cost Price of All Folders: Cost price of one folder = Rs. 35 Cost price of all 20 folders = Rs. 35 × 20 = 700 Calculate the Profit Earned on Selling All Folders: Selling price of all 20 folders = Rs. 1000 Profit = Selling price - Cost price = Rs.1000 − 700 = 300 The profit earned by the seller on selling all the folders is Rs. 300.
Milk is an example of………..emulsion & Butter is……….emulsion.
As per the guidelines of ICMR/NIN the percent of energy derived from cereals and nutricereals for an adult on a 2000 kcal diet is:
………… is an enzyme naturally present in raw milk, which is used as an indicator for proper milk pasteurization.
...Which of the following is a chemical used in aseptic packaging?
a) Chlorine peroxide
b) Peracetic Acid
...
Which of the following is true with regard to growth of microorganisms:
Which of these are glass container closure types?
Options:
1. Lug caps
2. Roll on caps
3. Continuous thread closures
4. T-top closures
secondary metabolite are produced during --------- of bacterial growth
Water activity, a thermodynamic property, is defined as the ratio of ……… in a system and the …………at the same temperature .
...Ferrous compounds’, catechol and ascorbic acid are used in active packaging as:
a. Ethylene scavenger
b. Oxygen scaveng...
Pesticide residues can cause health hazards like:
Options :
1. Delayed neuro toxicity
2. Skin rashes and irritation
3. Flatulence
4. Neurolathyrism
