Exams › SSC CGL (Prelims) › General

A group of 6 friends went to a cafe. If 5 of them paid Rs. 300 each and the sixth paid Rs. \(y\), the average bill per person was Rs. 320. What is the value of \(y\)?

1. Rs. 400
2. Rs. 420
3. Rs. 450
4. Rs. 380

Correct answer: Rs. 420

Solution

The total bill is \(6 \times 320 = 1920\). Five friends paid \(5 \times 300 = 1500\), so the sixth paid \(1920 - 1500 = 420\).

Related SSC CGL (Prelims) General questions

• Two farmers, X and Y, hire a field. X keeps 18 oxen there for 5 months and 20 goats for 3 months. Y keeps 24 goats for 7 months and 30 sheep for 6 months. If 2 oxen eat as much as 5 goats, and 3 goats eat as much as 4 sheep, what fraction of the total rent should X pay?
• Three batches of students have average ages 17, 19, and 23 years respectively. If their numbers are in the ratio 3:4:6, what is the overall average age of all the students?
• The average of 13 numbers is 75. If the average of the first six numbers is 69 and the average of the last six numbers is 80, what is the 7th number?
• Three numbers are such that when the average of any two is added to the third, the results are 200, 180, and 160. What is the average of the three numbers?
• The average of 11 numbers is 48. When one number is removed, the average becomes 45. What number was removed?
• The average height of 50 students was calculated as 170 cm. Later, it was found that the height of one student was misread as 178 cm instead of 158 cm. Find the correct average height.

⚔️ Practice SSC CGL (Prelims) General free + battle 1v1 →