2 men and 3 boys can do a piece of work in 10 days and 3 men and 2 boys can do the same in 8 days. In how many days can 2 men and 1 boy do the work?
If 10 men can plough a field in 4 days, 8 men will plough the same field in how many days?
A and B can do a piece of work in 45 days and 40 days respectively. They began to do the work together but A leaves after some days and then B completed the remaining part of the work in 23 days. After how many days did A leave the […]
One of the two buses completes a journey of 300 km in 7 hours 30 minutes and the other a journey of 450 km in 10 hours. What is the ratio of their average speeds?
If N. 500 amounts to N.583.20 in two years compounded annually, the rate of interest per annum
A reduction of 15% in the price of a stereo set brought down its price by #.1800. The original price of the set was
What is the third proportional to X2 – Y?
In a college the ratio of the number of boys to girls is 8:5. If there are 160 girls, what is the total number of students in the college?
The price of jute has been reduced by 20%. If the reduced price is N.800 per quintal the original price per quintal was
Suppose 20% of mangoes are rotten, and they number 35, then the total number mangoes is