The time taken for the construction of two walls A & B is 9 and 7 days respectively. Then, the ratio of time taken by A & B to construct the wall is .

9 : 7

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7 : 9

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3 : 7

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Solution

The correct option is A 9 : 7
Given,
Time taken for the construction of wall A = 9 days.
Time taken for the construction of wall B = 7 days.

The ratio of time taken for construction of wall A and B $= 9 : 7$

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The time taken for the construction of two walls A & B is 9 and 7 days respectively. Then, the ratio of time taken by A & B to construct the wall is .

The correct option is A 9 : 7Given, Time taken for the construction of wall A = 9 days. Time taken for the construction of wall B = 7 days. The ratio of time taken for construction of wall A and B =9:7

The correct option is A 9 : 7
Given,
Time taken for the construction of wall A = 9 days.
Time taken for the construction of wall B = 7 days.

The ratio of time taken for construction of wall A and B $= 9 : 7$