Quantitative Aptitude - Arithmetic Ability Questions

The compound interest earned in two years at 12% per annum is Rs 10176. What is the sum (in Rs) invested?

What is the effective discount on two successive discounts of 20% and 25%?

Δ DEF is right angled at E. If m∠D = 45°, then what is the value of cosecF X cotD?

If α and β are roots of the equation 3x2 – 13x + 14 = 0, then what is the value of (α/β) + (β/α)?

If 3x + 4y – 11 = 18 and 8x – 6y + 12 = 6, then what is the value of 5x – 3y – 9?

What is the value of tanπ4+A×tan3π4+A ?

If a sum of Rs.12500 is invested for 1 year at 12% per annum interest being compounded semi­-annually, then interest earned is

In Δ ABC, the median AD is 8 cm and CB is 16 cm, measure of angle CAB is_____ .