Quantitative Aptitude - Arithmetic Ability Questions

On walking 100 metres towards a building in a horizontal line, the angle of elevation of its top changes from 45 to 60 deg. What will be the height (in metres) of the building?

Two circles touch each other at point X. A common tangent touch them at two distinct points Y and Z. If another tangent passing through X cut YZ at A and XA= 16 cm, then what is the value (in cm) of YZ?

Select the odd word from the given alternatives.

Select the odd word/letters/number/number pair from the given alternatives.

If 4x2= 152- 92, then value of x is

If 5(4­-x) - ­4 < 3x - ­2 > 4x - 6; then the value of x is

X can complete a task in 8 days, whereas Y can complete the same task in 10 days. If they work together, in how many days will the task be completed?

P, Q and R together can make a table in 40 minutes. P and Q together can make it in 60 minutes. How much time (in minutes) will R alone take to make the table?