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Q.

Find out the correct answer for the unsolved equation on the basis of the given equations If $6 * 5 = 91, 8 * 7 = 169, 10 * 7 = 211$ then $11 * 10 = ?$

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a

331

b

993

c

678

d

845

answer is A.

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Detailed Solution

$6 \times 5 = 30, 30 \times 3 + 1 = 91, 8 \times 7 = 56$

$56 \times 3 + 1 = 169, 10 \times 7 = 70, 70 \times 3 + 1 = 211$

Similarly $11 \times 10 = 110, 110 \times 3 + 1 = 331$

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Find out the correct answer for the unsolved equation on the basis of the given equations If 6∗5=91,8∗7=169,10∗7=211 then 11∗10=?