What is the difference between var, let, and const in JavaScript?

The correct answer is B: var is function-scoped, let/const are block-scoped, const cannot be reassigned. var has function scope, let/const have block scope. const prevents reassignment but let allows it

The ratio of boys to girls in a class is 3:2. If there are 30 students, how many are girls?

The correct answer is A: 12. Total parts = 3 + 2 = 5. Girls = (2/5) × 30 = 12

In a scenario where you're assigned a high-priority client project with an aggressive timeline and limited resources, what should be your first action?

The correct answer is B: Conduct a detailed requirement analysis and risk assessment with stakeholders. Wipro's best practices emphasize thorough requirement gathering and risk assessment before project execution, ensuring quality and timeline adherence.

Which certification program does Infosys offer to upskill employees in cloud technologies?

The correct answer is D: All of the above. Infosys offers multiple cloud certification programs including partnerships with AWS, Azure, and GCP providers.

What does the prefix 'un-' typically mean in English?

The correct answer is B: Not or opposite of. 'Un-' is a prefix meaning 'not' or the opposite of something (unhappy = not happy).

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IBM Questions

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23 Q 10 Topics Take Mock Test

Difficulty: All Easy Medium Hard 21–23 of 23

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Q.21 Medium IBM Questions IBM

Find the odd one out: 15, 20, 25, 30, 35, 40, 45, 55

A 20

B 55

C 35

D 15

Correct Answer: B. 55

EXPLANATION

All numbers except 55 are multiples of 5 with a difference of 5. The difference before 55 is 10 instead of 5

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Q.22 Medium IBM Questions IBM

If A:B = 3:4 and B:C = 5:6, what is A:B:C?

A 15:20:24

B 3:4:5

C 3:5:6

D 12:16:20

Correct Answer: A. 15:20:24

EXPLANATION

A:B = 3:4 (multiply by 5) = 15:20. B:C = 5:6 (multiply by 4) = 20:24. So A:B:C = 15:20:24

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Q.23 Medium IBM Questions IBM

Two pipes A and B can fill a tank in 12 hours and 15 hours respectively. If both pipes are opened together, how long will it take to fill the tank?

A 6.67 hours

B 6 hours

C 7.5 hours

D 8 hours

Correct Answer: A. 6.67 hours

EXPLANATION

Rate of A = 1/12, Rate of B = 1/15. Combined rate = 1/12 + 1/15 = 5/60 + 4/60 = 9/60 = 3/20. Time = 20/3 = 6.67 hours

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