Ques:- A 260 meter long train crosses a 120 meter long wall in 19 seconds. What is the speed of the train?
A. 27 km/hr
B. 49 km/hr
C. 72 km/hr
D. 92 km/hr
Ques:- If the diagonals of a rhombus are 8 cm and 10 cm respectively what will be the area of the rhombus?
A. 35 sq cm
B. 40 sq cm
C. 30 sq cm
D. 20 sq cm
E. None of these
Ques:- If m, n, o, p and q are integers, then m(n + o) (p – q) must be even when which of the following is even?
A. m
B. n
C. m + n
D. n + p