Question

$136\times 107$ = (using identities)

• A. 14552
• B. 14551
• C. 14562
• D. 13552

Answer 1

The correct option is A 14552

The given expression is 136×107=(100+36)(100+7)

Expanding using the identity $(x+a)(x+b)=x^2+(a+b)x+ab$

(100+36)(100+7)

=${100}^2+(36+7)\times 100+36\times 7$

= 10000 + 4300 + 252

= 14552