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SSC CGL Model Paper 15

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Question : 1 of 100

Marks: +1, -0

GENERAL INTELLIGENCE & REASONING

Which two signs should be interchanged in the following equation to make it correct?

3+4-5\div 5 \times 7=0

× and -
+ and ÷
× and ÷
+ and -

Solution:

Concept:

Interchange the two given signs and check which replacement makes the equation equal to

0

.

Explanation:

Original equation:

3+4-5\div5\times7=0

.

Interchanging

\times

and

-

gives:

3+4\times5\div5-7

.

Apply BODMAS:

4\times5=20

, then

20\div5=4

.

So,

3+4-7=0

.

This satisfies the equation.

Answer:

\times

and

-

should be interchanged.

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