Which number will replace the question mark (?) in the following series?
20, 10, 10, 15, 30, ?
As in Given series $$20, 10, 10, 15, 30, ?$$
Following pattern being followed :
$$20\times0.5 = 10$$
$$10\times1=10$$
$$10\times1.5=15$$
$$15\times2=30$$
$$30\times2.5=Â 75$$
$$\therefore$$ Next term is 75Â
Create a FREE account and get: