Question

If 5 ×14=171 and 6×15=189,then value of 7×16

Answer 1

Here,

5 × 14 = 171

and

6 × 15 = 189

If we see in first case,

5 × 14 = 171

But, 14² - 5² = 171

=> 196 - 25 = 171

And in second case,

15² - 6² = 189

=> 225 - 36 = 189


So applying the same pattern,

7 × 16

= 16² - 7²

=>256 - 49

=> 207


207 is your answer

Answer 2

#ur Ans
__________

5× 14 = 171

6×15 = 189

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explained form

14+5 = 19×9 = 171

6+15 = 21×9 = 189

now
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7×16 = 7+16 = 23


=> 23×9 = 207 Ans

☺✌:-)