# Ratio and Percentage

## IF 45 percent of X is equal to 15 percent of Y, then what is the value of X:Y?

Question: IF 45 percent of X is equal to 15 percent of Y, then what is the value of X:Y? Answer: 4. 1:3 Solution: 0.45x=0.15y3x=yx:y=1:3

## 25 percent of 20 percent of a number is equal to 250. What is the 35 percent of that number?

Question: 25 percent of 20 percent of a number is equal to 250. What is the 35 percent of that number? Answer: 1750 Solution: 25 percent of 20 percent of a number x = 2500.25(0.2)x=25035 percent of the number =0.35×0.35x= (250x4x5x35)/100=5x2x5x35=1750

## A student scores 75% in a test and gets 30 marks more than another student who secured 60%. What is the maximum marks in the test?

Question: A student scores 75% in a test and gets 30 marks more than another student who secured 60%. What is the maximum marks in the test? Answer: 200 Solution: x is total marks . Then equation becomes0.75x=0.6x +300.15 x=30x=200

## In an exam, out of total number of appeared students 93 percent student passed and 9275 students failed. What is the total number of students appeared in the exam?

Question: In an exam, out of total number of appeared students 93 percent student passed and 9275 students failed. What is the total number of students appeared in the exam? Answer: 4. 132500 Solution: 7 percent of student are 92757x=9275x=1325then 100 percentage student=100x=132500

## Rs. 7200 is divided among P,Q and R in the ratio of 1/2:4:3/2 respectively. What is the share of R?

Question: Rs. 7200 is divided among P,Q and R in the ratio of 1/2:4:3/2 respectively. What is the share of R? Answer: 1. Rs 1800 Solution: adding all the ratio 0.5+4+1.5=66x=7200x=1200R ration=1.5 x =1.5 x(1200)=1800Rs 1800

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