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If a:b= 7:9 and b:c = 15:7, then what is a:c
If a:b= 7:9 and b:c = 15:7, then what is a:c
1). 5:3
2). 3:5
3). 7:21
4). 7:15
1). 5:3
2). 3:5
3). 7:21
4). 7:15
This Question has 6 answers.
it from previous year ssc papers, option 1 is the right answer
a : c = (a : b) × (b : c)
$\frac{7}{9}\times\frac{15}{7}=\frac{15}{9}$ = 5 : 3
a : c = (a : b) × (b : c)
=$\frac{7}{9}\times\frac{15}{7}=\frac{15}{9}$=5:9
Aliter : Using Rule 18
A : C = 7 × 15 : 9 × 7 = 5 : 3
A : C = 7 × 15 : 9 × 7 = 5 : 3.
1
7/9 × 15/7= 5 :3
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