Question
Without stoppage, a train travels a certain distance
with an average speed of 100 km/h, and with stoppage, it covers the same distance with an average speed of 80 km/h. On an average, how many minutes per hour does the train stop during the journey?Solution
Due to stoppage, it covers 20 km less. Time taken to cover 20 km = 20/100 × 60 = 12 min.
I. x² - 208 = 233
II. y² + 47 - 371 = 0
Solve the quadratic equations and determine the relation between x and y:
Equation 1: x² - 22x + 120 = 0
Equation 2: y² - 25y + 144 = 0
l. 3x2 + 17x + 24 = 0
II. 2y2 + 15y + 27 = 0
I. 12x2 + 22x + 8 = 0
II. 4y2 - y − 3 = 0
I. 2x² - 9x + 10 = 0
II. 3y² + 11y + 6 = 0
I. 2y² - 35y + 132 = 0
II. 2x² - 31x + 110 = 0
Find the value of 'x' and 'y' in the following equation:
8x - 3y = 58
5x + 2y = 106
In each of these questions, two equations (I) and (II) are given.You have to solve both the equations and give answer Â
I. 3x² –7x + 4 = 0�...
I. p2Â - 53p + 672 = 0
II. q2Â - 27q + 126Â = 0
In each of these questions, two equations (I) and (II) are given.You have to solve both the equations and give answer Â
I. x² - 8x + 15 = 0 ...
