If a : b = c : d = e : f = 1 : 2, then (3a + 5c + 7e) : (3b + 5d + 7f) is equal to: यदि a : b = c : d = e : f = 1 : 2 है, तो (3a + 5c + 7e) : (3b + 5d + 7f) किसके बराबर है?
A
1:2 (1:2)
B
1:4 (1:4)
C
3:5:7 (3:5:7)
D
2:1 (2:1)
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Correct Answer 1:2
Explanation
Each ratio is 1/2. By the property of equal ratios, the linear combination (ma + nc + pe) / (mb + nd + pf) is also equal to the original ratio. Thus, 1 : 2.