Quantitative Aptitude - Arithmetic Ability Questions

The diagonal of a square is 12 cm what is the length (in cm) of its side?

If x = 3+13, then the value of x-12642x-1x-233 is

The value of 1/64 is equal to square of

P and Q are at a distance of 240 km from each other at 9:00 a.m. After 1 hour, P starts moving towards Q at a speed of 25 km/hr. At 11 a.m. Q startsmoving towards P at the speed of 18 km/hr. At what time (in p.m.) will they meet?

10 persons can do a job in X days. If 20 persons with twice the efficiency can do the same job in 5 days, then find the value of X?

Deepinder lent Rs 8200 to Jairaj for 16 years and Rs 4900 to Karna for 15 years on simple interest at the same rate of interest and received Rs 19446.5 in all from both of them as interest. The rate of interest per annum is:

P and Q can do a project in 20 and 12 days respectively. In how many days can they complete 40% of the project if they work together?

What is the value of 5/9 + 7/8?