MBA Exam Logical Reasoning Seating Arrangement

What is the area of the shaded region if radius of the smaller circle is 7 cm and that of the bigger one is 7âˆš3 cm?

1) 1
2) 2
3) 3
4) 4

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MBA Other Question

A tank is fitted with a pipe which fills it at 10 litres/hrs. After 4hours, a leak develops in in tank. If the leak had developed after 3 hrs instead of 4. it would have taken 2 hrs longer to fill the tank. How long would it take to fill the tank, of capacity 100 lts if the leak existed from the beginning? (kindly provide the solution, if possible)

1) 20hrs
2) 30hrs
3) 15
4) 25
A dishonest grocer professes to sell pure butter at cost price, but he mixex it with adulterred fat and thereby gains 25%. Find the % of adulterated fat in the mixture assuming the adultered fat is freely available.

1) 20%
2) 25%
3) 33.33%
4) 40%
5) 35%