# TCS Papers: Sample Questions 96 - 97 of 502

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## Question number: 96

### Write in Short

A class of 25 students took a science test. 10 students had an average (arithmetic mean) score of 80. The other students had an average score of 60. What is the average score of the whole class?

### Explanation

• There are total 25 students who took science test. Among them 10 students had an average of 80 while other students had an average of 60.
• We are asked to find the average of whole class of 25 students.
• Total score of 10 students =
• Total score of 15 students =
• So, total score of 25 students =
• Average score of 25 students

• Average score of whole class is 68.

## Question number: 97

MCQ▾

### Question

The value of a scooter depreciates in such a way that its value of the end of each year is 3/4 of its value of the beginning of the same year. If the initial value of the scooter is Rs. 40,000, what is the value at the end of 3 years?

### Choices

Choice (4) Response

a.

Rs. 13435

b.

Rs. 16875

c.

Rs. 23125

d.

Rs. 19000