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In seven given numbers,the average of first four numbers is 4 and that of last four numbers is also 4. if the average of these seven numbers is 3, the fourth number is?

a.3

b.4

c.7

d.11

cost of 3 mango,4 pears cost 55 and cost of 1 apple, 5 pears cost 70 ,and cost of 2 mango, 5 apple cost 60...what the total cost of 1 app,1 mango and 1 pea?

Asked In: TCS 3 Hours ago
P is 30% more efficient than Q. P can complete a work in 23 days. If P and Q work together, how much time will it take to complete the same work?

Options

1) 9

2) 11

3) 13

4) 15

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