How many 7's are there in the following number sequence which are not immediately preceded by 4 but immediately followed by 2? 3 4 7 2 8 7 2 9 4 7 1 3 5 7 2 9 9 7 7 2 5 1 4 7 2 3
A
2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
3
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
4
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
1
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is A 3 In the given sequence, 3 4 7 2 8 7 2 9 4 7 1 3 5 7 2 9 9 7 7 2 5 1 4 7 2 3, There are 3 such 7s that are immediately followed by 2 but not immediately preceded by 4. Answer is Option B