Maths by Lav Kumar

Two pipes can fill a cistern separately in 20 minutes and 40 minutes respectively and a waste pipe can drain off 35 gallons per minute. If all three pipes are opened, the cistern gets filled in an hour. What is the capacity of the cistern?

Two taps 'A' and 'B' can fill a water reservoir in 8 and 6 hours respectively, A third tap 'C' can empty the tank completely in 24 hours.How long would it take to fill the empty tank when all the taps are open?

Two taps can fill a tank in 15 and 12 minutes respectively. A third tap can empty it in 20 minutes. If all the taps are opened at the same time, then in how much time will the tank be filled? Easy

A cistern is normally filled in 5 hours. However, it takes 6 hours when there is leak in its bottom. If the cistern is full, in what time shall the leak empty it?

What will be the amount on a sum of Rs 5000 at the rate of 20% per annum compound interest in 18 months, if the interest is compounded half yearly

What will be The compound interest on rs 8000 invested at 5% pa For 1 yr 73 days

What will be the compound interest on rs 8000 invested at 5% pa for 2 yrs 4 moths?

What will be the amount on a sum of Rs 16000 at the rate of 12% per annum compound interest in 2.5 years, if the interest is compounded 10 monthly?

What will be the amount on a sum of Rs. 12000 at the rate of 18% per annum compound interest in 0.5 years, if the interest is compounded 4 monthly?

How much interest will be earned in 1.5 years at the rate of 12.5% annual compound interest on an amount of Rs. 41472, if the interest is compounded 8 monthly?

Find the compound interest on an amount Rs 48000 at 12.5% rate of interest per annum for 5 years, if interest is compounded at every 2 years.