There are three rooms in a Hotel: one single, one double and one for four persons. How many ways are there to house seven persons in these rooms ?
When water freezes its density
Which of the following is the only member of the G-15 from the Indian subcontinent
9 girls working 7 hours a day can complete a piece of work in 15 day. In how many days can 6 girls working for 9 hours a day, complete the same piece of work?
According to the Mercer’s 19th annual Quality of Living survey released in 2017, which of the following city has emerged as the best city in terms of living standards among Indian cities ?
The coding or scrambling of data so that humans cannot read them, is known as _____.
Twenty times a positive integer is less than its square by 96. What is the integer ?
The prime meridian passes through
Two pipes A and B can separately fill a cistern in 60 min and 75 min respectively. There is a third pipe in the bottom of the cistern to empty it. If all the three pipes are simultaneously opened, then the cistern is full in 50 min. In how much time, the third pipe alone can empty the cistern ?
The total of 324 of 20 paise and 25 paise make a sum of Rs. 71. The no of 20 paise coins is :