For the following questions answer them individually

Question 1

Two parallel chords of a circle, of diameter 20 cm lying on the opposite sides of the centre are of lengths 12 cm and 16 cm. The distance between the chords is

Solution

Question 2

Ritu purchased $$2\ \frac{1}{2}$$ dozen eggs at the rate of Rs.20 per dozen. She found that 6 eggs were rotten. She sold the remaining eggs at the rate of Rs.22 per dozen. Then her profit or loss percent is:

Solution

Question 3

In a school, 10% of number of girls is equal to 1/20 th of number of boys. Ratio between the number of boys to number of girls is

Solution

Question 4

A fruit seller buys some oranges at the rate of 4 for Rs. 10 and an equal number more at 5 for Rs. 10. He sells the whole lot at 9 for Rs. 20. What is his loss or gain per cent ?

Solution

Question 5

Two men A and B started a job in which A was thrice as good as B and therefore took 60 days less than B to finish the job. How many days will they take to finish the job, if they take to finish the job, if they start working together?