last 5 days plan for term 2

An electric bulb will last for 150 days or with a probability 0.7 and it will last formost 160 days with probability 0.8 .probability that the bulb will last between 150 and 160 days is

A garrison of 'n' men had enough food to last for 30 days. After 10 days, 50 more men joined them. If the food now lasted for 16 days, what is the value of n ?

A can complete a work in 16 days, B in 12 days and C in l5 days. All of them began the work together, but A had to leave the work after 2 days of the start and B 3 days before the completion of the work. How long did the work last?

Last 21 Days Master Plan to Crack NEET 2023

First term of an A,P is -5 and its last term is 45 If the sum of these terms is 120 find the number of terms.

According to a plan, a drilling team had to drill to a depth of 270 metres below the ground level. For the first three days the team drilled as per the plan. However, subsequently finding that their resources were getting underutilised according to the plan, it started to drill 8 metres more than the plan every day. Therefore, a day before the planned date they had drilled to a depth of 280 metres. How many metres of drilling was the plan for each day.