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If the length of a simple pendulum of a clock incrreases by 2% how much loss or gain of second per day will take place ?

If 50% of a reaction occurs in 100 second and 75% of the reaction occurs in 200 second, the order of this reaction is :

What percent of 1 hour is 1 minute and 12 seconds ? A. 2% B. 12% C. 11% D. 1.2%

Two numbers are less than a third number by 25 % and 30 % , respectively. How much per cent is the second number less than first number ?

Three bags contain 64.2 kg of sugar. The second bag contains (4)/(5) of the contents of the first and the third contains 45(1)/(2)% of what there is in the second bag. How much sugar is there in each bag?