Exams

S does half as much work as T in 1/7 of the time taken by T. If together they take 21 days to complete a work, then how may days shall S take to complete that work alone?

In a class, 60% of children like Mathematics, 45% like Science and 25% like both Mathematics and Science. What is the percentage of children who like at least one subject?

To go a distance of 40 km upstream a rower takes 8 hours while it takes her only 5 hours to row the same distance downstream. What was the rower's speed in still water?

In the following question, out of the given four alternatives, select the one which is opposite in meaning of the given word.

Relationship

A moving train passes a platform 50m long in 14 seconds and a lamp post in 10 seconds. The speed of the train (in km/h) is :

What is Gol Gumbadh ?

Turquoise is an ore/mineral of

Improve the bracketed part of the sentence.
The people of Japan are (wiser than America.)