Instructions

For the following questions answer them individually

Question 41

The time required for a boy to travel along the external and internal boundaries of a circular path are in the ratio 20: 19. If the width of the path be 5 metres, the internal diameter is:

Question 42

8 children and 12 men complete a certain piece of work in 9 days, Each child takes twice the time taken by a man to finish the work. In how many days will 12 men finish the same work ?

Question 43

A certain number of men can do a work in 40 days. If there we 8 men more, it could be finished in 10 days less. How many men were there initially ?

Question 44

If Rs.510 be divided among A, B and C in such a way that A getsÂ $$\frac{2}{3}$$ of what B gets and B getsÂ $$\frac{1}{4}$$ of what C gets, then their shares are respectively.Â

Question 45

The average weight of 8 persons increases by 2.5 kg when a new persons comes in place of one of them weighing 65 kg. The weight of the new person is

Question 46

The sum of two positive numbers is 20% of the sum of their squares and 25% of the difference of their squares. If the numbers are x and y the, $$\ \frac{x+y}{x^{2}}\ $$ is equal to

Question 47

A seller gains 20% profit even after allowing 10% discount. If the amount of profit on a TV set is Rs.750, then the marked price of the TV set is

Question 48

Ram bought a bike for Rs.60,000. He paid Rs.10,000 cash down and the rest at the end of 2 years at 15% simple interest. How much more did he pay as simple interest ?

Question 49

A man rows 750 m in 675 seconds against the stream and returns in $$\ 7\frac{1}{2}\ $$minutes. Its rowing speed in still water is (in km/hr).

Question 50

A scooter is sold at three successive discounts of 10%, 5% and 2%. If the marked price of the scooter is Rs.18,000, find its net selling price.

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