For the following questions answer them individually
In an exam of 300 marks a student gets 75 marks. If she had scored 6 more marks she would have attained passing percentage. What is the passing percentage?
A man's annual income has increased by Rs 2 laths but the tax on income that he has to pay has reduced from 20% to 16%. He now pays the same amount of tax as before. What is his increased income (in Rs laths)?
A jet ski goes upstream at a speed of 48 km/hr and comes back the same distance at 80 km/hr. Find the average speed (in km/hr) for the total journey.
A bullet fired from a rifle travels at an average speed of 2520 km/hr. It hits the target after 0.2 seconds. How far (in m) is the target from the rifle?
Train A and B start at the same time. Train A travels at 55 km/hr from station X to station Y and train B travels at 80 km/hr from station Y to station X. They cross each other after 1 hour and 36 minutes. What is the distance (in km) between stations X and Y?
If in 2 years at simple interest the principal increases by 16%, what will be the compound interest earned (in Rs) on Rs 25,000 in 2 years at the same rate?
If compound interest received on a certain amount in the $$2^{nd}$$ year is Rs 250. What will be the compound interest (in Rs) for the $$3^{rd}$$ year on the same amount at 12% rate of interest?
What is the difference (in Rs) between the compound interests on Rs 12,500 for 1 year at 8% per annum compounded yearly and half-yearly?
The amount received at 8% per annum compound interest after 2 yrs is Rs 72,900. What was the principal (in Rs)?
