Quantitative Aptitude - Arithmetic Ability Questions

Car B is twice as fast as car A. If car A covers 90 km in 2 hours, what is the speed of car B?

ΔXYZ is right angled at Y. If cosX = 3/5, then what is the value of cosecZ ?

If 192 pens cost is Rs.10, how many pens can be bought for Rs.5?

In a bag, the ratio of red balls to green balls is 4:9. If 7 more red balls are added to the bag, the ratio of red balls to green balls will become 5:6. How many green balls are there in the bag?

What is the equation of the line whose y­-intercept is 4 and making an angle of 45° with the positive x-­axis?

Simplify (533bxaz)/(41ab)

Simplify 576b3x2a4z3/36a3b2z

If 4(x + 1) - 3 < 3 - x < 2x + 5; then the value of x is