Question

EQUATIONS REDUCIBLE TO A PAIR OF LINEAR EQUATIONS IN
TWO VARIABLES
1) Solve:
14 X8, y=31
xty Sxy
3x + 2y = 13xy, x0,y *0x )
a) +-6
3x - 25 1x = 3, y = 21
iv) 3a - 2b + 5 = 0
9 +36-2=0 x = -1, y = b]
2) A boat goes 24 km upstream and 28 km downstream in 6 hours. It goes
30 km upstream and 21 km downstream in 6 hrs. Find the speed of the
boat in still water and also speed of the stream. [10 km/hr, 4 km/hr
3) Ram travels 760 km to his home partly by train and partly by car. He
takes 8 hours if he travels 160 km by train and rest by car. He takes 12
minutes more if he travels 240 km by train and the rest by car. Find the
speed of the train and car respectively. speed of the train = 80 km/hr,
speed of the car = 100 km/hr]​

Answer 1

Step-by-step explanation:

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