The ratio of sand to gravel in a mixture is 17 : 8 while that between gravel and cement is 6 : 17. What is the ratio of sand to cement in the mixture ?
1). 17 : 17
2). 289 : 48
3). 8 : 6
4). 3 : 4
When x
2 + ax + b is divided by (x -1) , the remainder is 15 and when x
2 + bx + a
is divided by (x + 1),the remainder is-1, then the value of a
2 + b
2
is:
1). 10
2). 20
3). 8
4). 16
A current I flows through a resistor. A source maintains a potential difference of V across
the resistor. The energy supplied by the source in time t is :
1). $V I t^2$
2). V I
3). V I t
4). V I/t
Find the position of the image formed by a concave mirror when the object is placed
between P and F ?
1). At infinity
2). Between F and C
3). Behind the mirror
4). Beyond C
Who is the only Indian economist to have won the Nobel prize ?
1). Avinash Dixit
2). Amit Mishra
3). Amartya Sen
4). Abhijit Banerjee