Quantitative Aptitude - Arithmetic Ability Questions

Convert binary 1101111 to decimal.

After 10 innings the average score per innings of a batsman was 52. After 12 innings the average rose to 54. If the batsman had scored 16 more runs in the 12th innings than in the previous one, how many runs did he score in the 11th innings?

An octahedron has 6 vertices. How many edges does it have?

If x = 93 , y = 93 , z = 94 then the value of x2 - y2 + 10xz + 10yz is

The sum of a number and 4 times its reciprocal is 5. What is the number?

If α and β are the roots of the equation x2+ x – 1 = 0, then what is the equation whose roots are α5 and β5?

If √(1 - cos2A)/cosA = x, then the value of x is

In a farm, in addition to 48 hens there are 42 sheep and 11 oxen with some shepherds. If the total number of feet be 224 more than the number of heads, find the number of shepherd.