A committee of 7 members is to be chosen from 6 Chartered Accountants, 4 Economists and 5 Scientists. In how many ways can this be done if in
the committee, there must be at least one member from each group
and at least 3 Scientists ?​

b

step-by-step explanation:

this is because the profit is decreasing and turning into debt

for this case we have that by definition, the volume of a cylinder is given by:

where:

r: it's the radio

h: it's the height

we have as data that:

substituting:

so, the cylinder volume is

option d