Question 23

Which number will replace the question mark (?) in the following series?
20, 10, 10, 15, 30, ?

Solution

As in Given series $$20, 10, 10, 15, 30, ?$$

Following pattern being followed :

$$20\times0.5 = 10$$

$$10\times1=10$$

$$10\times1.5=15$$

$$15\times2=30$$

$$30\times2.5= 75$$

$$\therefore$$ Next term is 75

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