Question
A delivery van was going at 45 km/hr for ‘x’ hours and
later sped up by 12 km/hr. It continued for (x + 3) hours more and covered 684 km during that time. What was the distance travelled at the beginning?Solution
ATQ,
57 × (x + 3) = 684
Or, x + 3 = 12
Or, x = 9
Therefore, required distance travelled = 45 × 9 = 405 km
I. 3x² - 15x + 18 = 0
II. 2y² - 8y + 6 = 0
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