Class 10

Math

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Pair Of Linear Equation In Two Variables

solve for x and y, $x+(y6 )=6,3x−(y8 )=5$

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Water in a canal, 5·4 m wide and 1·8 m deep, is flowing with a speed of 25 km/hour. How much area can it irrigate in 40 minutes, if 10 cm ofstanding water is required for irrigation ?

A train travels 180 km at a uniform speed. If the speed had been 9 km/hour more, it would have taken 1 hour less for the same journey. Find the speed of the train.

Solve the following system of equations graphically : $2x+3y=8;x+4y=9$

Represent the following pair of equations graphically and write the coordinates of point where the lines intersect y-axis. $x+3y=6$ and $2x−3y=12$

Complete the missing entriesin the following factor tree

Solve for x : $x+11 +5x+13 =x+45 ,x=−1,−51 ,−4$

Sum of the areas of two squares is 400 cm. If the difference of theirperimeters is 16 cm, find the sides of the two squares.

The sum of numerator and denominator of a fraction is 3 less than twice the denominator. If each of the numerator and denominator is decreased by 1, the fraction becomes $21 $ Find the fraction.