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Q3 of 27 Page 1

For what value of k, the pair of linear equations 3x + y = 3 and 6x + ky = 8 does not have a solution.

, k=2


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4

If 3 chairs and 1 table costs Rs. 1500 and 6 chairs and 1 table costs Rs.2400. Form linear equations to represent this situation.

5

Which term of the A.P. 27, 24, 21,…..is zero?

OR


In an Arithmetic Progression, if d = - 4, n = 7, an = 4, then find a.


6

For what values of k, the equation 9x2 + 6kx + 4 = 0 has equal roots?

8

If PQ=28cm, then find the perimeter of ΔPLM.


Questions · 27
Set-I
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