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#### Write the correct answer :Which of the following is different from the others?(a) 20 + ( –25)  (b) (– 37) – (– 32)   (c) (– 5) × ( –1)   (d) ( 45 ) ÷ ( – 9)

(c)

$\\ (a) \ 20+(-25)=20-25=-5 \\ (b) \ (-37)-(-32)=-37+32=-5 \\ (c) \ (-5) \times(-1)=5 \\ (d) \ (45) \div(-9)=-\frac{45}{9}=-5 \\$

(-5)  x  (-1) is different from other options.