In ΞABC, points D and E are on AB and AC, respectively, such that DE is parallel to BC. If AD = 3 cm, BD = 6 cm and AE = 2 cm, then find the length of CE.
After allowing a discount of 15% on the marked price of an article, it was sold for βΉ425. Had the discount not been given, the profit would have been 25%. What was the cost price (in βΉ) of the article?
Sunil can row a boat 20 km upstream in 1 hour 15 minutes. If the speed of the current of the river is 2 km/h, then how much time will he take to row the boat 30 km downstream?