IBPS Government Jobs Exams Numerical Ability Averages

The average height of 3 boys Arun, Rakesh and Charan is 208/3 inches while the average height of Arun, Dinesh, and Vikas is 203/3 inches. What is the average height of Arun, Rakesh Charan, Dinesh, and Vikas?
A)197/3 inches B)65 inches C)66 inches D)64 inches E)Cannot be determined

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IBPS Other Question

The ratio between the three angles of a quadrilateral is 1:4:5 respectively. The value of the fourth angle of the quadrilateral is 60°. What Is the difference between the value of the largest and the smallest angles of the quadrilateral?
(1)120° (2)90° (3)110° (4)100° (5) None of these Present age of Rajeev is 100/3% of his fathers age and his father is half of the age of grandfather of Rajeev. The average of the present ages of all of them is 110/3 years. What was the ratio of their ages 10 years ago?
A)1 : 43 : 56 B)1 : 23 : 56 C)1 : 23 : 46 D)5 : 27 : 16 E)None of these