Question map
Not attempted Correct Incorrect ★ Bookmarked
Loading…
Q18 (CAPF/2008) Miscellaneous & General Knowledge › Important Days, Places & Events › Important Days, Places & Events

The average score of three boys in Mathematics is 30. When the score of a fourth boy is added to the total score of the three boys, the average is lowered to 25. What is the score of the fourth boy ?

Result
Your answer: —  Â·  Correct: A
Explanation

Explanation intentionally skipped due to low exam relevance today.

How others answered
Each bar shows the % of students who chose that option. Green bar = correct answer, blue outline = your choice.
Community Performance
Out of everyone who attempted this question.
70%
got it right
✓ Thank you! We'll review this.

SIMILAR QUESTIONS

IAS · 1996 · Q146 Relevance score: 0.51

The average of X1, X2 and X3 is 14. Twice the sum of X2 and X3 is 30. What is the value of X1 ?

IAS · 2000 · Q139 Relevance score: 0.15

In a class there are 18 boys who are over 160 cm tall. If these boys constitute three-fourths of the boys and the total number of boys is two-third of the number of students in the class, then what is the number of girls in the class?

CAPF · 2012 · Q8 Relevance score: -0.09

The average of x, y and z is 30, and the average of x and y is 20. What is the value of z?

IAS · 2007 · Q40 Relevance score: -0.37

Groups each obtaining 3 boys are to be formed out of 5 boys—A, B, C, D and E such that no one group contains both C and D together. What is the maximum number of such different groups?

CAPF · 2022 · Q34 Relevance score: -0.98

If the average of the first four of five numbers in decreasing order is 25 and the average of the last four numbers is 20, then what is the difference between the first and the last number?