Question : Direction: Some equation are solved on the basis of ceratain system. Find the correct answer for the unsolved equation on that basis.
5 x 4 x 3 = 70
6 x 5 x 4 = 140
7 x 6 x 5 = ?
Option 1: 210
Option 2: 220
Option 3: 230
Option 4: 240
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Correct Answer: 240
Solution : Here, in the given equations, we have –
5 x 4 x 3 = 70 ⇒ 5 x 4 x 3 + (5 x 2) = 70
6 x 5 x 4 = 140 ⇒ 6 x 5 x 4 + (5 x 4) = 140
Similarily , following the same pattern, we have –
7 x 6 x 5 ⇒ 7 x 6 x 5 + (5 x 6) = 240
Hence, option fourth is correct.
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