IBPS Government Jobs Exams Numerical Ability Averages

The average height of girls in a class is 5 ft and that of boys is 5.7 ft. If the average height of the students in class is 5.5 ft what could be the possible strength of boys and girls respectively in the class:
A) 30, 20 B) 20, 30 C) 50, 20 D) 60, 50

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IBPS Other Question

The average salary of a company increases by 100 when the salary of the manager, which is Rs. 9500, is included. If the number of employees excluding the manager is the smallest cube divisible by 16, what is the final average of the company? A) Rs. 4000 B) Rs. 3400 C) Rs. 3700 D) Rs. 3100 George has two weighing machines and he uses them in the ratio 2:3. The first machine is defective and shows a weight 100 gm more than actual. George sold 1 kg of rice to each of 5 customers. If he sells at cost price, how much profit will he make ?