How many litres of oxygen are needed to make 231g of calcium oxide?
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7th
Maths
Fractions and Decimals
Recalling Adding and Subtracting Decimals
abha starts for the school ...
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abha starts for the school at 6:45am and comes back home at 2:15 pm how long does she stay at school if 40 min are spent in going and coming
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The time interval between 6:45 am and 2:15pm = 7hrs30min
Time spent in coming and going =40min
Therefore, the time spent at school =6hrs50min
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