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SSC CHSL Model Paper 19

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Question : 23 of 99

Marks: +1, -0

Study the following statements and answer the questions accordingly.

'+' stands for division

'÷’ stands for multiplication

‘×’ stands for subtraction

and '-' stands for addition .

Which one of the following is correct?

$30 \div 40 + 8 - 70 \times 40 = 180$
$30 + 40 \div 8 \times 70 - 40 = 340$
$30 - 40 \times 8 \div 70 + 40 = 180$
$30 + 40 + 8 \times 70 - 40 = 340$

Solution:

+ ⇒ ÷	÷ ⇒ ×
× ⇒ -	- ⇒ +

Option (1)

30 \div 40 + 8 - 70 \times 40 = 180

⇒

30 \times 40 \div 8 + 70 - 40 = 180

⇒

30 \times 5 + 70 - 40 = 180

⇒

150 + 70 - 40 = 180

Option (2)

30 + 40 \div 8 \times 70 - 40 = 340

⇒

30 \div 40 \times 8 - 70 + 40 = 340

⇒

6 - 70 + 40 = 340

⇒

46 - 70 \neq 340

Option (3)

30 - 40 \times 8 \div 70 + 40 = 180

⇒

30 + 40 - 8 \times 70 \div 40 = 180

⇒

30 + 40 - 14 + 180

Option (4)

30 + 40 + 8 \times 70 - 40 = 340

⇒

30 \div 40 \div 8 - 70 + 40 = 340

⇒

\frac{3}{48} - 70 + 40 \neq 340

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