When $78^2$ is substracted from the square of a number, the answer is 6460.What is that number?
The unit of radioactivity is
Which least number should be added to 2600 to make it a perfect square?
A labourer was engaged for 25 days on the condition that for every day, he works, he will be paid Rs. 2 and for every day, he is absent he will be fined 50p. If he receives only Rs. 37.50, find the no. of days he was absent is_____
The quotient in a division sum is 403. The divisor is 100 and the remainder is 58. The dividend is _
There are 800 students in a school. If 1/10 of the students were absent on a day, find the number of students that were present that day. Also find the fraction of students of the school that was present that day.?
A piece of road is one kilo- meter in length. We have to supply lamp posts. One post at each end, distance between two consecutive lamp posts is 25 meters The number of lamp posts required is:
