In a class 54% of the students are girls and 46% are boys. If the number of girls is 27,find the total number of students
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Answer:
• A soft drink manufacturer wants to fabricate
cylindrical cans for its products. The can is
to have a volume of 34375 cu cm. If r is the
radius for the can to require least amount of
material then 8r2 is equal to
1) 1275 2) 1375 3) 1475 4) 1575РОпеи -
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3. The price of sugar is increased by 25%. By what percent must a house
wife reduce the consumption of sugar, so that the expenditure on sugar
is the same as before ?
Solution :8. The base and the height of a triangular field are in the ration 3:1. If the cost of
cultivating the field at 0.80 per m² is rs. 7680, find the base and height of the field.Let's write the area of the square region in terms of m where the length of one
side is (3m - 4) metre. Let's calculate the value of m when perimeter of the square is
8 metre.Melvin works 8 hours each day. His time is split between the records and the legal
departments. He is meant to spend twice as much time with legal as he is with records. How
much time should he spend in each department?