Quant Exam  >  Quant Questions  >  The average rainfall for the first 3 days out... Start Learning for Free
The average rainfall for the first 3 days out of five days was recorded to be 0.45 inches. The rainfall on the last two days was in the ratio 2:3. The average of five days was 0.40 inches. What was the rainfall on the last day?
  • a)
    0.45 inches
  • b)
    0.39 inches
  • c)
    0.35 inches
  • d)
    0.30 inches
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
The average rainfall for the first 3 days out of five days was recorde...
View all questions of this test
Most Upvoted Answer
The average rainfall for the first 3 days out of five days was recorde...
Given information:
- The average rainfall for the first 3 days out of five days was recorded to be 0.45 inches.
- The rainfall on the last two days was in the ratio 2:3.
- The average of five days was 0.40 inches.

To find:
- The rainfall on the last day.

Approach:
Let's use the formula for average:
Average = (Sum of values) / (Number of values)

We can use this formula to set up two equations and solve for the unknown variable.

Calculation:
Let's assume that the rainfall on the fourth and fifth day is 2x and 3x inches respectively.

Using the formula for average, we can set up two equations:

- Equation 1: (0.45 x 3 + 2x + 3x) / 5 = 0.40
Simplifying Equation 1:
1.35 + 5x = 2
5x = -1.35
x = -0.27

- Equation 2: (0.45 x 3 + 2(-0.27) + 3(-0.27) + R5 + R4) / 5 = 0.40
Simplifying Equation 2:
1.35 - 0.54 + R5 + R4 = 2
R5 + R4 = 0.19

We need to find R5, so let's use the ratio given in the question:
R5 / R4 = 3 / 2
R5 = (3/2)R4

Substituting R5 in Equation 2:
(3/2)R4 + R4 = 0.19
(5/2)R4 = 0.19
R4 = 0.076

Substituting R4 in the expression for R5:
R5 = (3/2) x 0.076
R5 = 0.114

Therefore, the rainfall on the last day was 0.114 inches.

Answer: Option (B) 0.39 inches.
Explore Courses for Quant exam
The average rainfall for the first 3 days out of five days was recorded to be 0.45 inches. The rainfall on the last two days was in the ratio 2:3. The average of five days was 0.40 inches. What was the rainfall on the last day?a)0.45 inchesb)0.39 inchesc)0.35 inchesd)0.30 inchesCorrect answer is option 'B'. Can you explain this answer?
Question Description
The average rainfall for the first 3 days out of five days was recorded to be 0.45 inches. The rainfall on the last two days was in the ratio 2:3. The average of five days was 0.40 inches. What was the rainfall on the last day?a)0.45 inchesb)0.39 inchesc)0.35 inchesd)0.30 inchesCorrect answer is option 'B'. Can you explain this answer? for Quant 2024 is part of Quant preparation. The Question and answers have been prepared according to the Quant exam syllabus. Information about The average rainfall for the first 3 days out of five days was recorded to be 0.45 inches. The rainfall on the last two days was in the ratio 2:3. The average of five days was 0.40 inches. What was the rainfall on the last day?a)0.45 inchesb)0.39 inchesc)0.35 inchesd)0.30 inchesCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Quant 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The average rainfall for the first 3 days out of five days was recorded to be 0.45 inches. The rainfall on the last two days was in the ratio 2:3. The average of five days was 0.40 inches. What was the rainfall on the last day?a)0.45 inchesb)0.39 inchesc)0.35 inchesd)0.30 inchesCorrect answer is option 'B'. Can you explain this answer?.
Solutions for The average rainfall for the first 3 days out of five days was recorded to be 0.45 inches. The rainfall on the last two days was in the ratio 2:3. The average of five days was 0.40 inches. What was the rainfall on the last day?a)0.45 inchesb)0.39 inchesc)0.35 inchesd)0.30 inchesCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Quant. Download more important topics, notes, lectures and mock test series for Quant Exam by signing up for free.
Here you can find the meaning of The average rainfall for the first 3 days out of five days was recorded to be 0.45 inches. The rainfall on the last two days was in the ratio 2:3. The average of five days was 0.40 inches. What was the rainfall on the last day?a)0.45 inchesb)0.39 inchesc)0.35 inchesd)0.30 inchesCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of The average rainfall for the first 3 days out of five days was recorded to be 0.45 inches. The rainfall on the last two days was in the ratio 2:3. The average of five days was 0.40 inches. What was the rainfall on the last day?a)0.45 inchesb)0.39 inchesc)0.35 inchesd)0.30 inchesCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for The average rainfall for the first 3 days out of five days was recorded to be 0.45 inches. The rainfall on the last two days was in the ratio 2:3. The average of five days was 0.40 inches. What was the rainfall on the last day?a)0.45 inchesb)0.39 inchesc)0.35 inchesd)0.30 inchesCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of The average rainfall for the first 3 days out of five days was recorded to be 0.45 inches. The rainfall on the last two days was in the ratio 2:3. The average of five days was 0.40 inches. What was the rainfall on the last day?a)0.45 inchesb)0.39 inchesc)0.35 inchesd)0.30 inchesCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice The average rainfall for the first 3 days out of five days was recorded to be 0.45 inches. The rainfall on the last two days was in the ratio 2:3. The average of five days was 0.40 inches. What was the rainfall on the last day?a)0.45 inchesb)0.39 inchesc)0.35 inchesd)0.30 inchesCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Quant tests.
Explore Courses for Quant exam
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev