Quantitative Aptitude - Arithmetic Ability Questions

What is the least number that should be added to the product 11 x 12 x 13 x 14 to make it a perfect square?

If a cone of radius 3.5 cm and height 9.6 cm is melted and constructed into a cylinder of the same radius, what will be the height of this cylinder? (Take π = 22/7)

In a one day match of 50 overs in an innings the Team A had a run rate of 6.1 runs per over. Team B is playing and 10 overs are left and the required run rate to tie the match is 6.5 per over. What is Team B's score now?

If 3 dozen guavas cost Rs. 90, how many guavas can be bought for Rs. 240?

If 11+11+11+1x = 58, then what is the value of x?

Reflection of the point (-3,6) in the x-axis is

Point Q(-2,b) is the midpoint of segment EF. Co-ordinates of E are (-7,-6) and F are (a,0). What is the value of a and b?

The mean of marks secured by 60 students in division A of class X is 66, 45 students of division B is 62 and that of 75 students of division C is 60. Find the mean of marks of the students of three divisions of Class X.