Let the speed of the man be ‘x’ m/sec. Speed of train = 1280/16 = 80 m/sec Relative speed of the train = (80 – x) m/sec According to the question, => (80 – x) = 1280/20 => x = 80 – 64 => x = 16 Therefore the speed of the man = 16 m/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
