If a : b = c : d, then which of the following is equal to (a + c) : (b + d)? यदि a : b = c : d है, तो निम्नलिखित में से कौन (a + c) : (b + d) के बराबर है?
A
a:b (a:b)
B
ac:bd (ac:bd)
C
a²:b² (a²:b²)
D
1:1 (1:1)
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Correct Answer a:b
Explanation
By the property of Addendo: If a/b = c/d = k, then (a+c)/(b+d) = (bk+dk)/(b+d) = k(b+d)/(b+d) = k. So it is equal to a : b.