Question
The average income of a group of 30 freelancers is Rs.
500. If 3 freelancers earning an average of Rs. 550 leave the group and 1 freelancer earning Rs. N joins the group, then the average income of the group increases by Rs. 60. Find the value of ‘N’.Solution
Total income of 30 freelancers initially = 30 × 500 = Rs. 15000 New average income of the group = 500 + 60 = Rs. 560 New number of freelancers in the group = 30 - 3 + 1 = 28 According to the question, 15000 - 3 × 550 + N = 560 × 28 Or, 15000 - 1650 + N = 15680 Or, 13350 + N = 15680 Or, N = 15680 - 13350 = 2330
Find the odd one out.
Which of the following will be coded "ZM RS ZO" in the given language?
In a certain code language, ‘athlete had taken’ is coded as ‘ht, ku, wh’, ‘treatment had recovered’ is coded as ‘ms, kr, ht’, ‘recover...
Looking at a family photo, F pointed to A and said, “She is my sister G’s father D’s sister E’s father B’s wife”. How is B related to F?
In the word ‘MEASUREMENT’ all consonants are written as their preceding letter and all vowels are written as their following letters. Now al...
In a certain code, ARCHAEOLOGY is written as 33 and HISTORY is written as 21, then how will PSEUDOMONAS be written as?
Statements: L ≥ M = N > O, R < M ≤ P > Q
Conclusion:
I. O ≥ Q
II. R < L
Four of the following five are alike in a certain way based on the given arrangement and thus form a group. Which is the one that does not belong to tha...
- Find the missing number in the diagram given below.
In the following question, select the odd image from the given alternatives.
Relevant for Exams:
