Legend Teachers Group Tutorial

A card is drawn from a pack of 52 playing cards , what is the probability that the card drawn is a face card? Answer : face cards are Q, K and J Total = 12 prob. = 12/52 = 3/13

3*4*x = 240 12x = 240 x = 20 Therefore the two numbers are 3*20 = 60 and 4*20 = 80

Sum = 25(1 + 50 ) =25(51) A.P Average = 25(51)/50 = 25.5

The average of the the first 50 natural numbers is = ----?

Two numbers are in the ratio of 3:4. If their lcm = 240, then find the numbers .

1, if you travel from A to B by 3 buses , from B to C by 4 buses , from C to D by 2 buses and D to E by 3 buses , then by how many different ways can you travel from A to E? From multipilication principle : 3*4*2*3 = 72

Three taps A,B,C together can fill a tank in 3 hour , after 1hour C is closed and the tank is filled in 4 more hour. The time in which C alone can fill the tank is --- hour? A,8 B, 6 C, 7 D, 10

Three taps A,B,C together can fill a tank in 3 hour , after 1hour C is closed and the tknk is filled in 4 more hour. The time in which C alone can fill the tank is --- hour? A,8 B, 6 C, 7 D, 10

1, 39 persons can repair a road in 12 days working 5 hours a day.in how many days will 30 persons working 6 hours a day complete the work? A, 13 B, 14 C, 15 D, 16 Ans = A 2, if the area of a rectangular plot of land increase by 30% while its breadth remain the same , what will be the ratio of the areas of new and old rectangle ? A, 13:12 B, 13:10 C, 12:10 D, 1.3:10 Ans. B

Gr-12 English Practice Questions

Let A and B be two events if P(A) = 0.4 and P(AUB) = 0.79, then find the P(B) if they are A, mutually exclusive B, independent . A, P(AnB) = 0, there fore P(AUB) = P(A) + P(B) B, P(AnB) = P(A).P(B) P(AUB) = P(A) + P(B) - P(A).P(B)

Answer 1,B,2C,3B,4D,5C

The image of the line whose vector equation (x,y) = (-2,1) + t(1,1) when translated by a vector T(2,-1) followed by rotation about angle of rotation 45 degree center (0,0)?