Let the length of the train be ‘x’ meters. According to question, => x/8 = (x + 300)/20 => 20x = 8x + 2400 => x = 200 The speed of the train = 200/8 = 25 m/s Required time taken by train to cross another platform = (200 + 250)/25 = 18 sec
I. 3x2 - 14x + 15 = 0
II. 15 y 2 - 34 y + 15 = 0
I. x2 = 100
II. y2 - 9y + 20 = 0
...If the S.P. of Rs 2250 results in a 10% discount on list price, what S.P. would result in a 20% discount on list price?
...A shopkeeper fixes the marked price of an item 35% above its cost price. The percentage of discount allowed to gain 8% is
...I. 2x 2 + 5x + 2 = 0
II. 4 y 2 = 1
If 94*6714 is divisible by 11, where * is a digit, then * is equal to
