Question

1. HCF of co-prime numbers is always__________.

2. Write a quadratic polynomial the sum of whose zeroes is -3 and product is -10.

3. After how many decimal places will the decimal expansion of the number -





×



terminates?

OR

Given that HCF (336,54) is 6, find LCM (336,54).

4. The diameter of a wheel is 1.54 m. How far will it travel in 200 revolutions?

5. Express 234 as the product of primes.

6. Find the area of a quadrant of a circle with radius 14 cm. (Take =



-



)

7. A pair of linear equations of two variables has unique solution. What type of lines will

its graph represent?

OR

For 3x – 7y = 10, Express y in terms of x.

8. On comparing the ratios of the coefficients, find out whether the pair of linear

equation − 2 = 0 3 + 4 − 20 = 0 is consistent or inconsistent .

9. Probability of happening of an event is

-



. What will be the probability of not

happening of that event?​

Answer 1

Answer:

1. one

2. x² + 3x -10

3. HCF = 6

now,

HCF x LCM = product of numbers

6 x LCM = 336 x 54

LCM = 336 x 9

LCM = 3024