How to use 24 hours effective study

A radioactive nucleus can decay by three different processes. Half life for first process is 2 hours . Effective half life of the necleus is 4/3 hours. Find the half for second process in hours.

Ashish studies for 4 hours, 5 hours and 3 hours respectively on threeconsecutive days. How many hours does he study daily on an average?

Ashish studies for 4 hours, 5 hours and 3 hours respectively on three consecutive days. How many hours does he study daily on an average?

Suman studies for (5)2/3 hours daily. She devotes (2)4/5 hours of her time for Science and Mathematics. How much time does she devote for other subjects?

Suman studies for 5 2/3 hours daily. She devotes 2 4/5 hours of her time for Science and Mathematics. How much time does she devote for other subjects?

A candidate in order to study the importance of certain factors in photosynthesis took a potted plant and kept it in the dark for over 24 hours. Then in the early hours of the morning she covered one of the leaves with black paper in the centre only. She placed the potted plant in the sunlight for a few hours, and then tested the leaf which was covered with black paper for starch Describe step by step how the candidate proceeded to test the leaf for the presence of starch

In animals the word anatomy is conventionally used for the study of

Red drop effect was studied by

[A] : Study of internal structure is called Anatomy. [R] : It is useful for phylogenetic study.

A survey in a study skills class asked the 20 students enrolled in the class how many hours (rounded to the nearest hour) they had spent studying on the previous evening. The 20 responses are summarized by the histogram below. To the nearest tenth of an hour, what is the average number of hours for the 20 survey responses?