The mean of marks secured by 45 students in division A of class X is 56, 40 students of division B is 52 and that of 40 students of division C is 50. Find
the mean of marks of the students of three divisions of Class X.
1). 52.1
2). 51.4
3). 52.8
4). 54.2
Select the related word/letters/number from the given alternatives.
Railway Station : Station Master : : School : ?
1). Chef
2). Doctor
3). Lieutenant
4). Principal
Select the odd word/letters/number/number pair from the given alternatives.
1). JPM
2). DJG
3). BHE
4). SDA
Select the related word/letters/number from the given alternatives.
Gloomy : Dull : : Merciless : ?
1). Sympathetic
2). Calm
3). Flexible
4). Harsh
The diagonals are not perpendicular in a _____.
1). Parallelogram
2). Kite
3). Rhombus
4). Square