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Q #6
⏰ :

Directions: Refer the following data to answer the questions given below.

Tea worth Rs 126 per kg and Rs 135 per kg are mixed with a third variety in the ratio 1 : 1 : 2. If the mixture is worth Rs 153 per kg the price of the third variety per kg will be:

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Q #7
⏰ :

Directions: Refer the following data to answer the questions given below.

The average of 11 numbers is 10.9. If the average of the first six numbers is 10.5 and that of the last six numbers is 11.4, then the middle (6th) number is:

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6th no. = 6 × 10.5 + 6 × 11.4 – 11 × 10.9 = 11.5

Q #8
⏰ :

Directions: Refer the following data to answer the questions given below.

There are 30 students in a class. The average age of the first 10 students is 12.5 years. The average age of the next 20 students is 13.1 years. The average age of the whole class is:

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Reqd. average = 1/30[ 10* 12.5+ 20* 13*1]= 12.9

Q #9
⏰ :

Directions: Refer the following data to answer the questions given below.

A trader sells 10 litres of a mixture of paints A and B, where the amount of B in the mixture does not exceed that of A. The cost of paint A per litre is Rs. 8 more than that of paint B. If the trader sells the entire mixture for Rs. 264 and makes a profit of 10%, then the highest possible cost of paint B, in Rs. per litre, is

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Q #10
⏰ :

Directions: Refer the following data to answer the questions given below.

In an apartment complex, the number of people aged 51 years and above is 30 and there are at most 39 people whose ages are below 51 years. The average age of all the people in the apartment complex is 38 years. What is the largest possible average age, in years, of the people whose ages are below 51 years?

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