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GATE 2014 EC (EC2) – Question 5

General Aptitude · Quantitative Aptitude: Arithmetic and Number Computation · 1 mark · Numerical answer

Fill the missing number: 2, 3, 6, 15, ______, 157.5, 630.

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Correct answer: 45 to 45

Explanation

Successive multipliers increase by0.5:1.5,2,2.5,3,3.5,4. Thus the missing number after15is15×3=**45**. Checking forward,45×3.5=157.5 and157.5×4=630, confirming the same rule.