Question

# Solve the equations 3x +2y=11 2x + 3y=4

Solution To eliminate y, we have to make the coefficients of yin (1)
and (ii) equal.
Multiplying (i) by 3, we get
9x+6y=33
Multiplying (ii) by 2, we get
4x+6y=8
.... (iv)
Subtracting (iv) from (iii), we have
5x=25
. x=5

Recent Questions
15. The heat of neutralisation of four acids P. Q R S are -13.7, -9.4.-11.2 and -12.4 kcal, respectively when
they are neutraThe phase difference between the displacement
and acceleration of particle executing S.H.M. in
radian is:
(1) 70/4
(2) 1/2
(3159. A train has to negotiate a curve of radius 200 m.
By how much should the outer rails be raised with
respect to the inner48. The period of revolution of planet A around the sun
is 8 times that of B. The distance of A from the
sun is how many timeX -sin x
*** V x + cos²x
X-
00
(a) 0
(c)1
(b) 0
(d) none of these
Solve numarical examples.
The masses of two bodies are measured
to be 15.7 + 0.2 kg and 27.3 0.3 kg.
What is the total mass o63. During certain period, the cost of living index number went up from 110 to
325 to 500 State by how much
200 and salary of47 Lymph contains a
- Blood - (compuseles + Fibrinogen
& Blood- some proteins
3 Blood - RBCs
&
Lymph - Plasomac + proteins
21.
The lower end of a capillary tube is dipped in water.
Water rises upto height 10 cm. The tube is broken
upto 8 cm. Then n