Quantitative Aptitude - Arithmetic Ability Questions

Deepanshu lent Rs. 8400 to Jaipal for 15 years and Rs. 5100 to Kareem for 14 years on simple interest at the same rate of interest and received Rs. 17766 in all from both of them as interest. The rate of interest per annum is

If two flood gates A and B function simultaneously, the reservoir will be filled iu 6 hours. Gate A fills the reservoir 5 hours faster than gate B. How many hours does the faster flood gate take to fill the reservoir?

If x + y = 10 and xy = 4, then what is the value of x4 + y4?

What is the value of 10% of 150% of 400?

ΔABC is similar to ΔPQR. If ratio of perimeter of ΔABC : perimeter of ΔPQR is 5:9 and if PQ = 45 cm, then the length of AB (in cm) is?

What is the measure of the central angle of the sector whose area is 462 sq cm and radius of the circle is 21 cm?

The value of 3x9n+1+9x32n-19x32n-6x9n-1 is equal to

If 2 pair of trouser is offered free on purchase of 3 pair of trousers priced Rs 900 each what is the effective discount on each pair of trouser?