Q5 of 23 Page 1

Attempt any two of the following sub questions:

Given below is the frequency distribution of driving speeds (in km/hour) of the vehicles of 400 college students:



Draw Histogram and hence the frequency polygon for the above data.

The histogram for given data will be:


For frequency polygon first we will find the class marks of the classes using



where for any class 20 - 30


Lower limit = 20


And upper limit = 3




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4

Attempt any two of the following sub questions:

The following table shows ages of 300 patients getting medical treatment in a hospital on a particular day:



Find the median age of the patients.

 4

Attempt any two of the following sub questions:

and , find the quadratic equation whose roots are and .

 5

Attempt any two of the following sub questions:

Babubhai borrows Rs. 4,000 and agrees to repay with a total interest of Rs. 500 in 10 installments, each installment being less than the preceding installment by Rs. 10. What should be the first and last installments?

 5

Attempt any two of the following sub questions:

On the first day of the sale of tickets of a drama, in all 35 tickets were sold. If the rates of the tickets were Rs. 20 and Rs. 40 per ticket and the total collection was Rs. 900, find the number of tickets sold of ach rate.