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Question 22 W...

Question

Question 22

Which of the following is different from the others?

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

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Solution

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

Option (c) is equal to 5 and is different from others.

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Question 5

The next number in the pattern -62, -37, -12 is ___.

(a) 25
(b) 13
(c) 0
(d) -13

{(25)}^{\frac{1}{3}} \times 5^{\frac{1}{3}}

10 \times 3 + (5 + 2)

10 \times 4 + (5 - 3)

8 \times 4 + 3

(9 \times 3) + 2

Question 20

In the following question, out of the four options, only one is correct. Write the correct answer:

$(- 9)^{3} \div (- 9)^{8}$ is equal to:
(a) $(9)^{5}$
(b) $(9)^{- 5}$
(c) $(- 9)^{5}$
(d) $(- 9)^{- 5}$

10

23, 22, 22, 5, 5, 20, 20, 20, 23, 22

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