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Constant

In which of t...

Question

In which of the following expressions are only numbers used?

(7 \times 20) - 8 z

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5 (21 - 7) + 7 \times 2

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2 x + 5

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6 x

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Solution

The correct option is B $5 (21 - 7) + 7 \times 2$
Only the expression $5 (21 - 7) + 7 \times 2$ has all numbers.

The expression:
1) $(7 \times 20) - 8 z$ has 'z' as a variable
2) $2 x + 5$ has 'x' as a variable
3) $6 x$ has 'x' as a variable
Hence, these expressions do not contain all numbers.

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Similar questions

Q. Which out of the following are expression with numbers only?
(a)

y + 3

(b)

(7 \times 20) - 8 z

(c)

5 (21 - 7) + 7 \times 2

(d)

5

(e)

3 x

(f)

5 - 5 n

(g)

(7 \times 20) - (5 \times 10) - 45 + p

Question 2

In which of the following expressions only numbers are used:

(a) y + 3

(b) $(7 \times 20) - 8 z$

(c) $5 (21 - 7) + 7 \times 2$

(d) 5

(e) 3x

(f) 5-5n

(g) $(7 \times 20) - (5 \times 10) - 45 + p$

Which out of the following are expressions with numbers only?

(a) y + 3 (b) (7 × 20) − 8z

(e) 3x (f) 5 − 5n

(g) (7 × 20) − (5 × 10) − 45 + p

Q. Which of the following are expression with number only?

(7 \times 20) - (5 \times 10) - 45 + p

Q. Which of the following are expressions with numbers only?
(a)

y + 3

(b)

(720) 8 z

(c)

5 (217) + 72

(d)

5

(e)

3 x

(f)

55 n

(g)

(720) (510) 45 + p

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In which of the following expressions are only numbers used?

The correct option is B 5(21−7)+7×2Only the expression 5(21−7)+7×2 has all numbers. The expression: 1) (7×20)−8z has 'z' as a variable 2) 2x+5 has 'x' as a variable 3) 6x has 'x' as a variable Hence, these expressions do not contain all numbers.

The correct option is B $5 (21 - 7) + 7 \times 2$
Only the expression $5 (21 - 7) + 7 \times 2$ has all numbers.

The expression:
1) $(7 \times 20) - 8 z$ has 'z' as a variable
2) $2 x + 5$ has 'x' as a variable
3) $6 x$ has 'x' as a variable
Hence, these expressions do not contain all numbers.