What will come in place of question mark? 50, 30, 40, 75, 170, ? Request you to please answer with detailed explanation of involved logic.
Answers
Answered by
20
Wehave
50,30,40,75,170.
Theseriesfollowsthefollowingpattern
xn+1=n(
xn
2
+5)...(i)
wherex1=50
Putn=1in(i)
⇒x2=1(
x1
2
+5)=(
50
2
+5)=30
Putn=2in(i)
x2+1=2(
x2
2
+5)=2(
30
2
+5)=40
Similarlyweget
x5+1=5(
x5
2
+5)=5(
170
2
+5)=5
×(85+5)=450(Answer)
Similar questions