No. of when History books are always together = 5! × 8! Total no. of ways when all the books are arranged without any condition = 12! No. of ways when History book are never together = 12! – (5! × 8!)
Which are true examples of formal garden?
Which among the following is generally known as twin deficit?
Which soil structure type is characterized by the arrangement of particles into thin, flat plates that lie horizontally?
Which nematode is known as cyst nematode?
The vitamin which helps in the conversion of Tryptophan to Niacin is:
Tree banding is done in mango trees to control ______ insect pest.
Which type of lifecycle is observed in thrips?
Average gestation period of cow is:
Bengal famine (1943) was caused due to ____ disease which attacked ____ crop.
Which is the trade name of flufenoxuron insecticide?
