The number of boys and girls in a class are in the ratio 7:5. The number of boys is 8 more than the number of girls. What is the total class strength
Answers
Answered by
1
Answer:
56
Step-by-step explanation:
1) Let the number of boys be 7x and girls be 5x.
2) Therefore 7x = 5x + 8, 2x = 8, x = 4.
3) No. of boys = 7x + 8 = 7 × 4 + 8 = 36.
4) No. of girls = 5x = 5 × 4 = 20.
5) Therefore, Total Strength = 36 + 20 = 56.
Answered by
0
Answer:
girls = 6
Step-by-step explanation:
boys and girls ratio = 7:5
boys = 8
girls = 8/? = 7:5 means 7/5
(cross multiple)
8×5 = 7×y. (y - is a supposing number of girls)
40 = 7y
7y = 40
y = 40/7
y(girls) = 5.71
girls no. = 6 (u think that there is ans is 5.71 but in below u write 6 ,is that because when a number after is more than 50 is converted into next digit , similar in this we wrote 6 )
sorry that's my fault I thought no. of boys is 8 .
sorry again
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