STD 6 MATHS CH 13 SVADHYAY 13.1

A card is drawn from a well shuffled deck of cards. What is the probability of getting a king, given that the card drown is black (A) 1/13 (B) 4/13 (C) 6/13 (D) 7/13

4/13 + 9/13 + 2/13 = ?/13

The greatest positive integer for which 13 ^(k)+1 is a factor of the sum 13^(71) + 13 ^(70) + 13 ^(69) +….+ 13+1

If MAMMAL is written as 13 - 1 - 13 - 13 - 1 - 12 , using the same code REPTILE is written as

The ratio in which the plane 3x+4y-5z =1 divided the join of (-2,4,-6) and (3,-5,6) is (a)12:13 (b) 13:12 (c )13:14 (d)14:13

6.If a=2+-8 and =4+3-4 then the magnitude of a+h is equal to :(6)13)( a) 13 (d) 13

6a^(2) - 13a + 6 =?

6 more than -7 is 1 (b) -1 (c) 13 (d) -13

4,6, 9, 13(1)/(2) ?