8. The sum of two numbers which are in the ratio 2 : 5 is 21. The numbers are
(a) 8, 13
(b) 7, 14
(c) 6, 15
(d) 12,9
Answers
Answered by
1
Step-by-step explanation:
Here,
let the number be 2x and 5x,
then
2x + 5x = 21
7x = 21
x = 21/7
x= 3
Hence,
2x = 6
5x = 15
therefore , option c is correct answer
Answered by
1
Step-by-step explanation:
Let the ratio of the number be 2x and 5x respectively.
2x+5x=21
7x=21
x=21÷7
x=3
2x= 2×3=6
5x=5×3=15
So the number are 6, 15.
Option c is correct......
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