wiz-icon
MyQuestionIcon
MyQuestionIcon
2
You visited us 2 times! Enjoying our articles? Unlock Full Access!
Question

Find the sum of all numbers from 1 to 140 which are divisible by 4.

A
2530
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
2520
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
3240
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
5410
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B 2520
Clearly, the numbers from 1 to 140 which are divisible by 4 are 4,8,12,...140.
This is an AP with first term a=4, common difference d=4 and last term l=140.
Let there be n terms in this AP.
Then,
an=140a+(n1)d
140=4+(n1)×4
n=35
required sum =Sn=n2[a+l]=352[4+140]
=2520

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Sum of 'n' Terms of an Arithmetic Progression
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon