In a class, there are 70 students. If the ratio boys to girls is 5:2, – InterviewSolution

InterviewSolution

1.	In a class, there are 70 students. If the ratio boys to girls is 5:2, then find the number of girls in the class.
Answer» Correct Answer - 28 Total student in the class = 70 Let x be the number of grils in the class. ` 70 : x=5:2` ` 70/x = 5/2 Rightarrow 70 xx 2/5 = x ` x= 28 Number of grils in the class = 28

Discussion

No Comment Found

Related InterviewSolutions

A student Gaurav of weight 50 kg secured 150 marks. Another student Saurav of weight 40 kg proportion to their marks, how much did Saurav score the exam ?
find the greatest ratio of the following 1 : 6 , 3: 8 (ii) 9: 16: 5 : 12
Mr Mallanna wants to distribute watermelon to his three daugters in the ratio 2:3:4. such that the eldest daughter gets the highest share . If the eldest daughter gets least share. If the eldest daughter gets 250 g more than that of the youngest then find the total weight of the watermelon distributed.
Shantan got 68 marks in English and 85 marks in Mathematics. Find the ratio of the marks scored in English to the Matematics.
Mr Arunachalam earcned ₹ 48,800 in a month. He spent ₹24,000. find the ratio of (i) the earnings to expenditure and (ii) expenditure to savings.
A sweet maker mixes sugar, milk and other ingredients in the ratio 4: 9:3. in 2 Kg of such sweet. Find the quantity of sugar.
If ` x = (8ab)/(a+b) `, then find the value of `((x+4a)/(x - 4a) + (x+4b)/(x-4b))`.
In a basket, the number of blue, red and green balls are in the ratio 4 : 7:9. if there are a total of 960 balls, then find the number of green balls.
There are 20 girls and 15 boys in a class.(a) What is the ratio of number of girls to the number of boys?(b) What is the ratio of number of girls to the total number of students in the class?
Find the ratio of the following:(a) 30 minutes to 1.5 hours (b) 40 cm to 1.5 m(c) 55 paise to Re 1 (d) 500 ml to 2 litres