For the following questions answer them individually
A is twice as good as B and together they finish a piece of work in 16 days. The number of days taken by A alone to finish the work is
The successive discount of 15%, 20% and 25% on an article is equivalent to the single discount of
The numbers x, y, z are respectively proportional to 2, 3, 5 and the sum of x, y and z is 80. If the number z is given by the equation z = ax-8,
then a is
The price of rice has increased by 60%. In order to restore the original price, the new price must be reduced by
A man covers a total distance of 100 km on bicycle. For the first 2 hours, the speed was 20 km/hr and for the rest of the journey, it came down to 10
km/hr.The average speed will be
Alipta got some amount of money from her father. In how many years will the ratio of the money and the interest obtained from it be 10:3 at 6% simple interest per annum?
In a triangle ABC, if $$\angle A$$ + $$\angle C$$ = 140° and $$\angle A$$ + 3 $$\angle B$$ = 180° then $$\angle A$$ is equal to
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