Find the third vertex of a triangle if its two vertices are (−1,4) and (5,2) and midpoint of one side is (0,3) .

The smallest composite number is ______.

(a) 2

(b) 4

(c) 1

(d) None of these

Find the arithmetic mean of the first ten odd natural numbers.

A boat goes 24 km upstream and 28 km downstream in 6 hours. It goes 30 km upstream and 21 km downstream in 6 hours and 30 minutes. The speed of the boat in still water is

A. 10 km/hr

B. 4 km/hr

C. 14 km/hr

D. 6 km/hr

One hundred lakhs is equal to:

A. 10 million

B. 1 million

C. 100 million

D. 10 crore

The marks obtained by Rani in her twelfth standard exams are tabulated below. Express these marks as percentage.