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Q12. Find the sum of the even numbers between 0 and 75.
OR
Find a quadratic polynomial whose sum and product of its zero

By Savannah

Q12. Find the sum of the even numbers between 0 and 75.
OR
Find a quadratic polynomial whose sum and product of its zeroes are
respectively.
– 3 and 7
Q13. Let A ABC ~ A DEF and their areas be, respectively, 81 cm² and 121 cm2. If
EF = 13.2 cm, find BC.
Q14. Prove that 7 + 5V2 is irrational number.
SECTION-IV (Each question carry 3 marks)
Q15. The following data gives the information on the observed lifetimes (in hours)
of 225 electrical components.
Lifetimes (in 0-20 20-40 40-60 60-80 80-100 100-120
hours)
Frequency 10 35 61 52 38
29
Determine the mean and modal lifetimes of the components. Also find difference
between mean and modal lifetimes of the components.
0 TL​

About the author
Savannah

Write the neumarator and deneumarator of each of the following fraction 9/13 and 7/11

In a class of 50 students, 15 read Physics, 20 Chemistry and 20 read Mathematics, 3 read Physics and Chemistry, 6 read Chemistry a

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