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Recent questions tagged set-3

Find the value of k for which the points $A(k+1,2k) ,B(3k,2k+3) $ and $ c(5k-1,5k)$ are collinear .

asked Mar 18, 2015 by meena.p

1 answer

A truck covers a distance of $150 km$ at a certain average speed and then covers another 200 km at an average speed which is $20\;km/hr$ more than the first speed. If the truck covers the total distance in 5 hours, find the first speed of the truck?

asked Mar 18, 2015 by meena.p

1 answer

An arithmetic progression $5, 12,19....., $ has I st terms. Find its last term hence find the sum of its last 15 terms.

asked Mar 18, 2015 by meena.p

1 answer

A bag contains white, black and red balls only. A ball is drawn at random from the bag if the probability of getting a white balls is $\large\frac{3}{10} $ and that of black is $\large\frac{2}{5}$, then find the probability of getting a red balls. If the bag contains 20 black balls, then find the total number of balls in the bag.

asked Mar 18, 2015 by meena.p

1 answer

Find the coordinates of a point P on the line segment joining $A(1,2) $ and $B(6,7)$ Such that $AP= \large \frac{2}{5} $$AB$

asked Mar 18, 2015 by meena.p

1 answer

The 13th term of an A.P is four times its 3rd term . If its fifth term is 16, then find the sum of its first ten terms

asked Mar 18, 2015 by meena.p

1 answer

Solve the following quadratic equation for $x_i.\qquad x^2-2ax-(4b^2-a^2)=0$

asked Mar 18, 2015 by meena.p

1 answer

Find the relation between x and y if the points $A(x,y) ,B(-5,7)$ and $C(-4,5)$ are collinear .

asked Mar 18, 2015 by meena.p

1 answer

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