Question

47
2
1. Given that HCF (306, 657) = 9 find LCM (306, 657).
Or
The decimal representation of 75 will terminate after how many decimal places?
2. Two positive integers a and b can be written as a = x3y2 and b = xy3.x,y are prime
numbers, then LCM (a, b).
3. Find a quadratic polynomial whose zeroes are (3 + V2) and (3 - 72).
4. If«B are the zeroes of the polynomial 2y2 + 7y + 5, write the value of C + B + B.
5. Fer what value of K, the following system of equation Kx + 2y = 3, 3x + y = 10 has
unique solution
6. A fraction becomes when 2 is subtracted from the numerator and it becomes when 1
subtracted from the denominator.
From linear equations to represent this situation.
7. For what values of K, the roots of the equation x2 + 4x + k = 0 are real?
(1)
Or
Find the value of K for which the equation x2 + K(2x + K - 1) = 0 has real and equal
8. If the quadratic equation px2 - 2V5 px + 15 = 0 has two equal roots, then find the val
p.
9. How many two digit numbers are divisible by 3?
10.In an AP, if the common difference (d) = -4 and the seventh term (ay) is 4, then find th
term.
Or​

Answer 1

Step-by-step explanation:

LCM × HCF =PRODUCT OF NUMBER

9×LCM =306×657

LCM=306×657÷9

LCM = 22338