Question
The main advantage of Zero Energy Cool Chambers (ZECC)
in rural post-harvest systems is:Solution
ZECC uses water evaporation to lower temperature and increase humidity, preserving produce without electricity.
There are 14 candidates for 5 post. In how many different ways can be post be filled?
How many four digit numbers greater than 5000 can be formed with the digits 4 ,5, 7, 8, and 9? Â
Find the no. of words formed by using all the letter of the word DISCOUNT, so that the vowels are never together?
- From 10 musicians and 5 singers, a band of 8 members is to be formed. In how many ways can the band be formed such that there are at least 6 musicians?
Among 5 distinct toys, how many arrangements are possible such that 3 specific toys do not appear together?
History books are always together and also Geography books are always together?
- A group consists of 8 boys and 10 girls. In how many ways 5 boys and 4 girls can be chosen from the group?
In how many ways can the letters of the word ‘MEDICAL’ be rearranged so that the vowels never come together?
How many four-letter words without repetition having exactly two vowels can be formed by using the letters of the word "SEMINAR"?
In how many ways can 5 boys and 3 girls be arranged in a row so that no two girls sit together?