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Some equations are solved on the basis of a certain system. Find the correct answer for the unsolved equation on that basis.5×4×3=705 \times 4\times 3
Question

Some equations are solved on the basis of a certain system. Find the correct answer for the unsolved equation on that basis.

5×4×3=705 \times 4\times 3 = 70

6×5×4=1406 \times 5 \times 4 = 140

7×6×5=?7 \times 6 \times 5 = ?​​​​​​

A.

210

B.

220

C.

230

D.

240

Correct option is D

Given:
5×4×3=705 \times 4\times 3 = 70
6×5×4=1406 \times 5 \times 4 = 140
7×6×5=?7 \times 6 \times 5 = ?
Logic:  
1st Pair;
5 × 4 × 3 = 60
60 + 10 = 70
2nd Pair;
6 × 5 × 4 = 120
120 + 20 = 140
Now follow this pattern in 3rd pair;
3rd Pair;
7 × 6 × 5= 210
210 + 30 = 240
So, the correct answer is 240.
Thus, the correct answer is (d).

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